Home / 488,012.13-730,744.97-392,721.83

Finding the Fourth Proportional to 488,012.13, 730,744.97 and 392,721.83

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Solution

The fourth proportional to 488,012.13, 730,744.97 and 392,721.83 is: 588,058.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,012.13 : 730,744.97 = 392,721.83 : x
  2. Step 2: Convert to fraction form
    488,012.13/730,744.97 = 392,721.83/x
  3. Step 3: Cross multiply
    488,012.13x = 730,744.97 × 392,721.83
  4. Step 4: Simplify right side
    488,012.13x = 286,979,496,264.36
  5. Step 5: Solve for x
    x = 286,979,496,264.36/488,012.13
  6. Step 6: Final answer
    x = 588,058.12

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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.