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Finding the Fourth Proportional to 526,982.76, 726,744.96 and 487,840.32

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Solution

The fourth proportional to 526,982.76, 726,744.96 and 487,840.32 is: 672,764.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,982.76 : 726,744.96 = 487,840.32 : x
  2. Step 2: Convert to fraction form
    526,982.76/726,744.96 = 487,840.32/x
  3. Step 3: Cross multiply
    526,982.76x = 726,744.96 × 487,840.32
  4. Step 4: Simplify right side
    526,982.76x = 354,535,493,844.79
  5. Step 5: Solve for x
    x = 354,535,493,844.79/526,982.76
  6. Step 6: Final answer
    x = 672,764.88

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.