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Finding the Fourth Proportional to 602,882.43, 832,019.82 and 398,578.38

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Solution

The fourth proportional to 602,882.43, 832,019.82 and 398,578.38 is: 550,065.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,882.43 : 832,019.82 = 398,578.38 : x
  2. Step 2: Convert to fraction form
    602,882.43/832,019.82 = 398,578.38/x
  3. Step 3: Cross multiply
    602,882.43x = 832,019.82 × 398,578.38
  4. Step 4: Simplify right side
    602,882.43x = 331,625,111,983.49
  5. Step 5: Solve for x
    x = 331,625,111,983.49/602,882.43
  6. Step 6: Final answer
    x = 550,065.98

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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.