Home / 485,827.57-728,715.07-148,869.19

Finding the Fourth Proportional to 485,827.57, 728,715.07 and 148,869.19

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Solution

The fourth proportional to 485,827.57, 728,715.07 and 148,869.19 is: 223,295.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,827.57 : 728,715.07 = 148,869.19 : x
  2. Step 2: Convert to fraction form
    485,827.57/728,715.07 = 148,869.19/x
  3. Step 3: Cross multiply
    485,827.57x = 728,715.07 × 148,869.19
  4. Step 4: Simplify right side
    485,827.57x = 108,483,222,471.28
  5. Step 5: Solve for x
    x = 108,483,222,471.28/485,827.57
  6. Step 6: Final answer
    x = 223,295.73

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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.