Home / 674,200.70-1,011,301.05-409,643.90

Finding the Fourth Proportional to 674,200.70, 1,011,301.05 and 409,643.90

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Solution

The fourth proportional to 674,200.70, 1,011,301.05 and 409,643.90 is: 614,465.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,200.70 : 1,011,301.05 = 409,643.90 : x
  2. Step 2: Convert to fraction form
    674,200.70/1,011,301.05 = 409,643.90/x
  3. Step 3: Cross multiply
    674,200.70x = 1,011,301.05 × 409,643.90
  4. Step 4: Simplify right side
    674,200.70x = 414,273,306,196.10
  5. Step 5: Solve for x
    x = 414,273,306,196.10/674,200.70
  6. Step 6: Final answer
    x = 614,465.85

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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.