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Finding the Fourth Proportional to 557,080.56, 836,752.68 and 491,995.44

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Solution

The fourth proportional to 557,080.56, 836,752.68 and 491,995.44 is: 738,992.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,080.56 : 836,752.68 = 491,995.44 : x
  2. Step 2: Convert to fraction form
    557,080.56/836,752.68 = 491,995.44/x
  3. Step 3: Cross multiply
    557,080.56x = 836,752.68 × 491,995.44
  4. Step 4: Simplify right side
    557,080.56x = 411,678,502,967.78
  5. Step 5: Solve for x
    x = 411,678,502,967.78/557,080.56
  6. Step 6: Final answer
    x = 738,992.76

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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.