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Finding the Fourth Proportional to 723,508.21, 998,784.17 and 482,193.01

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Solution

The fourth proportional to 723,508.21, 998,784.17 and 482,193.01 is: 665,654.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,508.21 : 998,784.17 = 482,193.01 : x
  2. Step 2: Convert to fraction form
    723,508.21/998,784.17 = 482,193.01/x
  3. Step 3: Cross multiply
    723,508.21x = 998,784.17 × 482,193.01
  4. Step 4: Simplify right side
    723,508.21x = 481,606,745,272.65
  5. Step 5: Solve for x
    x = 481,606,745,272.65/723,508.21
  6. Step 6: Final answer
    x = 665,654.84

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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.