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Finding the Fourth Proportional to 783,609.60, 1,175,414.40 and 744,902.40

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Solution

The fourth proportional to 783,609.60, 1,175,414.40 and 744,902.40 is: 1,117,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,609.60 : 1,175,414.40 = 744,902.40 : x
  2. Step 2: Convert to fraction form
    783,609.60/1,175,414.40 = 744,902.40/x
  3. Step 3: Cross multiply
    783,609.60x = 1,175,414.40 × 744,902.40
  4. Step 4: Simplify right side
    783,609.60x = 875,569,007,554.56
  5. Step 5: Solve for x
    x = 875,569,007,554.56/783,609.60
  6. Step 6: Final answer
    x = 1,117,353.60

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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.