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Finding the Fourth Proportional to 657,859.16, 907,839.18 and 371,373.08

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Solution

The fourth proportional to 657,859.16, 907,839.18 and 371,373.08 is: 512,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,859.16 : 907,839.18 = 371,373.08 : x
  2. Step 2: Convert to fraction form
    657,859.16/907,839.18 = 371,373.08/x
  3. Step 3: Cross multiply
    657,859.16x = 907,839.18 × 371,373.08
  4. Step 4: Simplify right side
    657,859.16x = 337,147,032,421.27
  5. Step 5: Solve for x
    x = 337,147,032,421.27/657,859.16
  6. Step 6: Final answer
    x = 512,491.20

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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.