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Finding the Fourth Proportional to 485,147.48, 726,916.70 and 295,032.76

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Solution

The fourth proportional to 485,147.48, 726,916.70 and 295,032.76 is: 442,059.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,147.48 : 726,916.70 = 295,032.76 : x
  2. Step 2: Convert to fraction form
    485,147.48/726,916.70 = 295,032.76/x
  3. Step 3: Cross multiply
    485,147.48x = 726,916.70 × 295,032.76
  4. Step 4: Simplify right side
    485,147.48x = 214,464,240,291.09
  5. Step 5: Solve for x
    x = 214,464,240,291.09/485,147.48
  6. Step 6: Final answer
    x = 442,059.89

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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.