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Finding the Fourth Proportional to 501,031.80, 750,202.68 and 391,878.72

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Solution

The fourth proportional to 501,031.80, 750,202.68 and 391,878.72 is: 586,766.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,031.80 : 750,202.68 = 391,878.72 : x
  2. Step 2: Convert to fraction form
    501,031.80/750,202.68 = 391,878.72/x
  3. Step 3: Cross multiply
    501,031.80x = 750,202.68 × 391,878.72
  4. Step 4: Simplify right side
    501,031.80x = 293,988,465,978.97
  5. Step 5: Solve for x
    x = 293,988,465,978.97/501,031.80
  6. Step 6: Final answer
    x = 586,766.08

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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.