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Finding the Fourth Proportional to 485,124.40, 726,882.15 and 295,009.69

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Solution

The fourth proportional to 485,124.40, 726,882.15 and 295,009.69 is: 442,025.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,124.40 : 726,882.15 = 295,009.69 : x
  2. Step 2: Convert to fraction form
    485,124.40/726,882.15 = 295,009.69/x
  3. Step 3: Cross multiply
    485,124.40x = 726,882.15 × 295,009.69
  4. Step 4: Simplify right side
    485,124.40x = 214,437,277,560.30
  5. Step 5: Solve for x
    x = 214,437,277,560.30/485,124.40
  6. Step 6: Final answer
    x = 442,025.34

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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.