Home / 785,154.41-1,177,737.54-429,974.68

Finding the Fourth Proportional to 785,154.41, 1,177,737.54 and 429,974.68

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Solution

The fourth proportional to 785,154.41, 1,177,737.54 and 429,974.68 is: 644,965.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,154.41 : 1,177,737.54 = 429,974.68 : x
  2. Step 2: Convert to fraction form
    785,154.41/1,177,737.54 = 429,974.68/x
  3. Step 3: Cross multiply
    785,154.41x = 1,177,737.54 × 429,974.68
  4. Step 4: Simplify right side
    785,154.41x = 506,397,323,164.91
  5. Step 5: Solve for x
    x = 506,397,323,164.91/785,154.41
  6. Step 6: Final answer
    x = 644,965.26

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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.