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Finding the Fourth Proportional to 538,516.20, 807,774.30 and 496,525.80

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Solution

The fourth proportional to 538,516.20, 807,774.30 and 496,525.80 is: 744,788.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,516.20 : 807,774.30 = 496,525.80 : x
  2. Step 2: Convert to fraction form
    538,516.20/807,774.30 = 496,525.80/x
  3. Step 3: Cross multiply
    538,516.20x = 807,774.30 × 496,525.80
  4. Step 4: Simplify right side
    538,516.20x = 401,080,780,526.94
  5. Step 5: Solve for x
    x = 401,080,780,526.94/538,516.20
  6. Step 6: Final answer
    x = 744,788.70

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Double scale
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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.