Home / 791,686.90-1,187,532.78-192,648.16

Finding the Fourth Proportional to 791,686.90, 1,187,532.78 and 192,648.16

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Solution

The fourth proportional to 791,686.90, 1,187,532.78 and 192,648.16 is: 288,972.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,686.90 : 1,187,532.78 = 192,648.16 : x
  2. Step 2: Convert to fraction form
    791,686.90/1,187,532.78 = 192,648.16/x
  3. Step 3: Cross multiply
    791,686.90x = 1,187,532.78 × 192,648.16
  4. Step 4: Simplify right side
    791,686.90x = 228,776,005,006.69
  5. Step 5: Solve for x
    x = 228,776,005,006.69/791,686.90
  6. Step 6: Final answer
    x = 288,972.83

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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.