Home / 877,561.80-1,316,342.70-344,905.80

Finding the Fourth Proportional to 877,561.80, 1,316,342.70 and 344,905.80

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Solution

The fourth proportional to 877,561.80, 1,316,342.70 and 344,905.80 is: 517,358.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,561.80 : 1,316,342.70 = 344,905.80 : x
  2. Step 2: Convert to fraction form
    877,561.80/1,316,342.70 = 344,905.80/x
  3. Step 3: Cross multiply
    877,561.80x = 1,316,342.70 × 344,905.80
  4. Step 4: Simplify right side
    877,561.80x = 454,014,232,017.66
  5. Step 5: Solve for x
    x = 454,014,232,017.66/877,561.80
  6. Step 6: Final answer
    x = 517,358.70

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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.