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Finding the Fourth Proportional to 424,109.52, 585,299.52 and 280,622.88

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Solution

The fourth proportional to 424,109.52, 585,299.52 and 280,622.88 is: 387,278.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,109.52 : 585,299.52 = 280,622.88 : x
  2. Step 2: Convert to fraction form
    424,109.52/585,299.52 = 280,622.88/x
  3. Step 3: Cross multiply
    424,109.52x = 585,299.52 × 280,622.88
  4. Step 4: Simplify right side
    424,109.52x = 164,248,436,965.02
  5. Step 5: Solve for x
    x = 164,248,436,965.02/424,109.52
  6. Step 6: Final answer
    x = 387,278.35

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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.