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Finding the Fourth Proportional to 529,374.30, 794,061.45 and 280,542.30

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Solution

The fourth proportional to 529,374.30, 794,061.45 and 280,542.30 is: 420,813.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,374.30 : 794,061.45 = 280,542.30 : x
  2. Step 2: Convert to fraction form
    529,374.30/794,061.45 = 280,542.30/x
  3. Step 3: Cross multiply
    529,374.30x = 794,061.45 × 280,542.30
  4. Step 4: Simplify right side
    529,374.30x = 222,767,825,524.34
  5. Step 5: Solve for x
    x = 222,767,825,524.34/529,374.30
  6. Step 6: Final answer
    x = 420,813.45

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Similar ratio
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1.5x scale

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.