Home / 1,025,359.40-1,538,039.10-426,121.40

Finding the Fourth Proportional to 1,025,359.40, 1,538,039.10 and 426,121.40

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Solution

The fourth proportional to 1,025,359.40, 1,538,039.10 and 426,121.40 is: 639,182.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,359.40 : 1,538,039.10 = 426,121.40 : x
  2. Step 2: Convert to fraction form
    1,025,359.40/1,538,039.10 = 426,121.40/x
  3. Step 3: Cross multiply
    1,025,359.40x = 1,538,039.10 × 426,121.40
  4. Step 4: Simplify right side
    1,025,359.40x = 655,391,374,546.74
  5. Step 5: Solve for x
    x = 655,391,374,546.74/1,025,359.40
  6. Step 6: Final answer
    x = 639,182.10

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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.