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Finding the Fourth Proportional to 538,314.80, 807,472.20 and 488,451.20

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Solution

The fourth proportional to 538,314.80, 807,472.20 and 488,451.20 is: 732,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,314.80 : 807,472.20 = 488,451.20 : x
  2. Step 2: Convert to fraction form
    538,314.80/807,472.20 = 488,451.20/x
  3. Step 3: Cross multiply
    538,314.80x = 807,472.20 × 488,451.20
  4. Step 4: Simplify right side
    538,314.80x = 394,410,765,056.64
  5. Step 5: Solve for x
    x = 394,410,765,056.64/538,314.80
  6. Step 6: Final answer
    x = 732,676.80

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Similar ratio
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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.