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Finding the Fourth Proportional to 508,731.63, 763,113.74 and 255,874.11

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Solution

The fourth proportional to 508,731.63, 763,113.74 and 255,874.11 is: 383,819.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,731.63 : 763,113.74 = 255,874.11 : x
  2. Step 2: Convert to fraction form
    508,731.63/763,113.74 = 255,874.11/x
  3. Step 3: Cross multiply
    508,731.63x = 763,113.74 × 255,874.11
  4. Step 4: Simplify right side
    508,731.63x = 195,261,049,051.27
  5. Step 5: Solve for x
    x = 195,261,049,051.27/508,731.63
  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.