Home / 1,379,411.40-2,069,117.10-382,139.40

Finding the Fourth Proportional to 1,379,411.40, 2,069,117.10 and 382,139.40

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Solution

The fourth proportional to 1,379,411.40, 2,069,117.10 and 382,139.40 is: 573,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,411.40 : 2,069,117.10 = 382,139.40 : x
  2. Step 2: Convert to fraction form
    1,379,411.40/2,069,117.10 = 382,139.40/x
  3. Step 3: Cross multiply
    1,379,411.40x = 2,069,117.10 × 382,139.40
  4. Step 4: Simplify right side
    1,379,411.40x = 790,691,167,123.74
  5. Step 5: Solve for x
    x = 790,691,167,123.74/1,379,411.40
  6. Step 6: Final answer
    x = 573,209.10

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.