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Finding the Fourth Proportional to 665,246.20, 994,224.56 and 485,710.14

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Solution

The fourth proportional to 665,246.20, 994,224.56 and 485,710.14 is: 725,904.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,246.20 : 994,224.56 = 485,710.14 : x
  2. Step 2: Convert to fraction form
    665,246.20/994,224.56 = 485,710.14/x
  3. Step 3: Cross multiply
    665,246.20x = 994,224.56 × 485,710.14
  4. Step 4: Simplify right side
    665,246.20x = 482,904,951,443.31
  5. Step 5: Solve for x
    x = 482,904,951,443.31/665,246.20
  6. Step 6: Final answer
    x = 725,904.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.