Home / 785,109.70-1,177,664.55-724,456.90

Finding the Fourth Proportional to 785,109.70, 1,177,664.55 and 724,456.90

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Solution

The fourth proportional to 785,109.70, 1,177,664.55 and 724,456.90 is: 1,086,685.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,109.70 : 1,177,664.55 = 724,456.90 : x
  2. Step 2: Convert to fraction form
    785,109.70/1,177,664.55 = 724,456.90/x
  3. Step 3: Cross multiply
    785,109.70x = 1,177,664.55 × 724,456.90
  4. Step 4: Simplify right side
    785,109.70x = 853,167,209,132.90
  5. Step 5: Solve for x
    x = 853,167,209,132.90/785,109.70
  6. Step 6: Final answer
    x = 1,086,685.35

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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.