Home / 418,521.22-577,844.46-280,906.48

Finding the Fourth Proportional to 418,521.22, 577,844.46 and 280,906.48

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Solution

The fourth proportional to 418,521.22, 577,844.46 and 280,906.48 is: 387,842.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,521.22 : 577,844.46 = 280,906.48 : x
  2. Step 2: Convert to fraction form
    418,521.22/577,844.46 = 280,906.48/x
  3. Step 3: Cross multiply
    418,521.22x = 577,844.46 × 280,906.48
  4. Step 4: Simplify right side
    418,521.22x = 162,320,253,246.10
  5. Step 5: Solve for x
    x = 162,320,253,246.10/418,521.22
  6. Step 6: Final answer
    x = 387,842.35

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1.5x scale

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.