Home / 749,320.20-1,123,980.30-699,553.80

Finding the Fourth Proportional to 749,320.20, 1,123,980.30 and 699,553.80

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Solution

The fourth proportional to 749,320.20, 1,123,980.30 and 699,553.80 is: 1,049,330.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,320.20 : 1,123,980.30 = 699,553.80 : x
  2. Step 2: Convert to fraction form
    749,320.20/1,123,980.30 = 699,553.80/x
  3. Step 3: Cross multiply
    749,320.20x = 1,123,980.30 × 699,553.80
  4. Step 4: Simplify right side
    749,320.20x = 786,284,689,990.14
  5. Step 5: Solve for x
    x = 786,284,689,990.14/749,320.20
  6. Step 6: Final answer
    x = 1,049,330.70

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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.