Home / 1,389,251.70-2,082,711.15-724,403.70

Finding the Fourth Proportional to 1,389,251.70, 2,082,711.15 and 724,403.70

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Solution

The fourth proportional to 1,389,251.70, 2,082,711.15 and 724,403.70 is: 1,085,997.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,251.70 : 2,082,711.15 = 724,403.70 : x
  2. Step 2: Convert to fraction form
    1,389,251.70/2,082,711.15 = 724,403.70/x
  3. Step 3: Cross multiply
    1,389,251.70x = 2,082,711.15 × 724,403.70
  4. Step 4: Simplify right side
    1,389,251.70x = 1,508,723,663,091.26
  5. Step 5: Solve for x
    x = 1,508,723,663,091.26/1,389,251.70
  6. Step 6: Final answer
    x = 1,085,997.35

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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.