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Finding the Fourth Proportional to 508,731.64, 763,113.72 and 255,874.12

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Solution

The fourth proportional to 508,731.64, 763,113.72 and 255,874.12 is: 383,819.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,731.64 : 763,113.72 = 255,874.12 : x
  2. Step 2: Convert to fraction form
    508,731.64/763,113.72 = 255,874.12/x
  3. Step 3: Cross multiply
    508,731.64x = 763,113.72 × 255,874.12
  4. Step 4: Simplify right side
    508,731.64x = 195,261,051,564.93
  5. Step 5: Solve for x
    x = 195,261,051,564.93/508,731.64
  6. Step 6: Final answer
    x = 383,819.36

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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.