Home / 695,318.60-1,043,139.65-215,520.95

Finding the Fourth Proportional to 695,318.60, 1,043,139.65 and 215,520.95

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Solution

The fourth proportional to 695,318.60, 1,043,139.65 and 215,520.95 is: 323,331.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,318.60 : 1,043,139.65 = 215,520.95 : x
  2. Step 2: Convert to fraction form
    695,318.60/1,043,139.65 = 215,520.95/x
  3. Step 3: Cross multiply
    695,318.60x = 1,043,139.65 × 215,520.95
  4. Step 4: Simplify right side
    695,318.60x = 224,818,442,057.37
  5. Step 5: Solve for x
    x = 224,818,442,057.37/695,318.60
  6. Step 6: Final answer
    x = 323,331.55

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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.