Home / 784,991.70-1,177,487.55-724,338.90

Finding the Fourth Proportional to 784,991.70, 1,177,487.55 and 724,338.90

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Solution

The fourth proportional to 784,991.70, 1,177,487.55 and 724,338.90 is: 1,086,508.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,991.70 : 1,177,487.55 = 724,338.90 : x
  2. Step 2: Convert to fraction form
    784,991.70/1,177,487.55 = 724,338.90/x
  3. Step 3: Cross multiply
    784,991.70x = 1,177,487.55 × 724,338.90
  4. Step 4: Simplify right side
    784,991.70x = 852,900,036,730.70
  5. Step 5: Solve for x
    x = 852,900,036,730.70/784,991.70
  6. Step 6: Final answer
    x = 1,086,508.35

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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.