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Finding the Fourth Proportional to 658,071.68, 908,131.92 and 371,574.80

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Solution

The fourth proportional to 658,071.68, 908,131.92 and 371,574.80 is: 512,769.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,071.68 : 908,131.92 = 371,574.80 : x
  2. Step 2: Convert to fraction form
    658,071.68/908,131.92 = 371,574.80/x
  3. Step 3: Cross multiply
    658,071.68x = 908,131.92 × 371,574.80
  4. Step 4: Simplify right side
    658,071.68x = 337,438,936,547.62
  5. Step 5: Solve for x
    x = 337,438,936,547.62/658,071.68
  6. Step 6: Final answer
    x = 512,769.27

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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.