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Finding the Fourth Proportional to 637,761.20, 956,641.80 and 613,266.80

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Solution

The fourth proportional to 637,761.20, 956,641.80 and 613,266.80 is: 919,900.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,761.20 : 956,641.80 = 613,266.80 : x
  2. Step 2: Convert to fraction form
    637,761.20/956,641.80 = 613,266.80/x
  3. Step 3: Cross multiply
    637,761.20x = 956,641.80 × 613,266.80
  4. Step 4: Simplify right side
    637,761.20x = 586,676,655,432.24
  5. Step 5: Solve for x
    x = 586,676,655,432.24/637,761.20
  6. Step 6: Final answer
    x = 919,900.20

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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.