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Finding the Fourth Proportional to 491,256.80, 736,885.20 and 254,520.80

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Solution

The fourth proportional to 491,256.80, 736,885.20 and 254,520.80 is: 381,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,256.80 : 736,885.20 = 254,520.80 : x
  2. Step 2: Convert to fraction form
    491,256.80/736,885.20 = 254,520.80/x
  3. Step 3: Cross multiply
    491,256.80x = 736,885.20 × 254,520.80
  4. Step 4: Simplify right side
    491,256.80x = 187,552,610,612.16
  5. Step 5: Solve for x
    x = 187,552,610,612.16/491,256.80
  6. Step 6: Final answer
    x = 381,781.20

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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.