Home / 418,088.55-577,138.86-282,306.36

Finding the Fourth Proportional to 418,088.55, 577,138.86 and 282,306.36

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Solution

The fourth proportional to 418,088.55, 577,138.86 and 282,306.36 is: 389,702.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,088.55 : 577,138.86 = 282,306.36 : x
  2. Step 2: Convert to fraction form
    418,088.55/577,138.86 = 282,306.36/x
  3. Step 3: Cross multiply
    418,088.55x = 577,138.86 × 282,306.36
  4. Step 4: Simplify right side
    418,088.55x = 162,929,970,781.15
  5. Step 5: Solve for x
    x = 162,929,970,781.15/418,088.55
  6. Step 6: Final answer
    x = 389,702.06

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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.