Home / 858,781.76-1,185,155.82-476,808.50

Finding the Fourth Proportional to 858,781.76, 1,185,155.82 and 476,808.50

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Solution

The fourth proportional to 858,781.76, 1,185,155.82 and 476,808.50 is: 658,016.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,781.76 : 1,185,155.82 = 476,808.50 : x
  2. Step 2: Convert to fraction form
    858,781.76/1,185,155.82 = 476,808.50/x
  3. Step 3: Cross multiply
    858,781.76x = 1,185,155.82 × 476,808.50
  4. Step 4: Simplify right side
    858,781.76x = 565,092,368,800.47
  5. Step 5: Solve for x
    x = 565,092,368,800.47/858,781.76
  6. Step 6: Final answer
    x = 658,016.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.