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Finding the Fourth Proportional to 783,609.80, 1,175,414.70 and 251,512.70

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Solution

The fourth proportional to 783,609.80, 1,175,414.70 and 251,512.70 is: 377,269.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,609.80 : 1,175,414.70 = 251,512.70 : x
  2. Step 2: Convert to fraction form
    783,609.80/1,175,414.70 = 251,512.70/x
  3. Step 3: Cross multiply
    783,609.80x = 1,175,414.70 × 251,512.70
  4. Step 4: Simplify right side
    783,609.80x = 295,631,724,816.69
  5. Step 5: Solve for x
    x = 295,631,724,816.69/783,609.80
  6. Step 6: Final answer
    x = 377,269.05

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Similar ratio
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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.