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Finding the Fourth Proportional to 657,023.40, 984,854.70 and 356,869.80

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Solution

The fourth proportional to 657,023.40, 984,854.70 and 356,869.80 is: 534,935.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,023.40 : 984,854.70 = 356,869.80 : x
  2. Step 2: Convert to fraction form
    657,023.40/984,854.70 = 356,869.80/x
  3. Step 3: Cross multiply
    657,023.40x = 984,854.70 × 356,869.80
  4. Step 4: Simplify right side
    657,023.40x = 351,464,899,818.06
  5. Step 5: Solve for x
    x = 351,464,899,818.06/657,023.40
  6. Step 6: Final answer
    x = 534,935.13

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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.