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Finding the Fourth Proportional to 657,898.17, 907,899.71 and 371,436.72

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Solution

The fourth proportional to 657,898.17, 907,899.71 and 371,436.72 is: 512,582.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,898.17 : 907,899.71 = 371,436.72 : x
  2. Step 2: Convert to fraction form
    657,898.17/907,899.71 = 371,436.72/x
  3. Step 3: Cross multiply
    657,898.17x = 907,899.71 × 371,436.72
  4. Step 4: Simplify right side
    657,898.17x = 337,227,288,514.17
  5. Step 5: Solve for x
    x = 337,227,288,514.17/657,898.17
  6. Step 6: Final answer
    x = 512,582.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.