Home / 858,116.52-1,287,366.12-281,765.48

Finding the Fourth Proportional to 858,116.52, 1,287,366.12 and 281,765.48

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Solution

The fourth proportional to 858,116.52, 1,287,366.12 and 281,765.48 is: 422,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,116.52 : 1,287,366.12 = 281,765.48 : x
  2. Step 2: Convert to fraction form
    858,116.52/1,287,366.12 = 281,765.48/x
  3. Step 3: Cross multiply
    858,116.52x = 1,287,366.12 × 281,765.48
  4. Step 4: Simplify right side
    858,116.52x = 362,735,332,737.54
  5. Step 5: Solve for x
    x = 362,735,332,737.54/858,116.52
  6. Step 6: Final answer
    x = 422,711.05

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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.