Home / 858,117.52-1,287,367.62-281,766.48

Finding the Fourth Proportional to 858,117.52, 1,287,367.62 and 281,766.48

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Solution

The fourth proportional to 858,117.52, 1,287,367.62 and 281,766.48 is: 422,712.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,117.52 : 1,287,367.62 = 281,766.48 : x
  2. Step 2: Convert to fraction form
    858,117.52/1,287,367.62 = 281,766.48/x
  3. Step 3: Cross multiply
    858,117.52x = 1,287,367.62 × 281,766.48
  4. Step 4: Simplify right side
    858,117.52x = 362,737,042,753.38
  5. Step 5: Solve for x
    x = 362,737,042,753.38/858,117.52
  6. Step 6: Final answer
    x = 422,712.55

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1.5x scale

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.