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Finding the Fourth Proportional to 614,459.52, 921,508.85 and 215,025.84

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Solution

The fourth proportional to 614,459.52, 921,508.85 and 215,025.84 is: 322,475.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,459.52 : 921,508.85 = 215,025.84 : x
  2. Step 2: Convert to fraction form
    614,459.52/921,508.85 = 215,025.84/x
  3. Step 3: Cross multiply
    614,459.52x = 921,508.85 × 215,025.84
  4. Step 4: Simplify right side
    614,459.52x = 198,148,215,076.25
  5. Step 5: Solve for x
    x = 198,148,215,076.25/614,459.52
  6. Step 6: Final answer
    x = 322,475.62

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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.