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Finding the Fourth Proportional to 509,355.60, 763,475.40 and 256,232.40

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Solution

The fourth proportional to 509,355.60, 763,475.40 and 256,232.40 is: 384,067.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,355.60 : 763,475.40 = 256,232.40 : x
  2. Step 2: Convert to fraction form
    509,355.60/763,475.40 = 256,232.40/x
  3. Step 3: Cross multiply
    509,355.60x = 763,475.40 × 256,232.40
  4. Step 4: Simplify right side
    509,355.60x = 195,627,134,082.96
  5. Step 5: Solve for x
    x = 195,627,134,082.96/509,355.60
  6. Step 6: Final answer
    x = 384,067.90

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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.