Home / 674,921.20-1,013,037.90-409,200.70

Finding the Fourth Proportional to 674,921.20, 1,013,037.90 and 409,200.70

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Solution

The fourth proportional to 674,921.20, 1,013,037.90 and 409,200.70 is: 614,198.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,921.20 : 1,013,037.90 = 409,200.70 : x
  2. Step 2: Convert to fraction form
    674,921.20/1,013,037.90 = 409,200.70/x
  3. Step 3: Cross multiply
    674,921.20x = 1,013,037.90 × 409,200.70
  4. Step 4: Simplify right side
    674,921.20x = 414,535,817,806.53
  5. Step 5: Solve for x
    x = 414,535,817,806.53/674,921.20
  6. Step 6: Final answer
    x = 614,198.84

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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.