Home / 783,000.20-1,174,500.30-408,974.60

Finding the Fourth Proportional to 783,000.20, 1,174,500.30 and 408,974.60

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Solution

The fourth proportional to 783,000.20, 1,174,500.30 and 408,974.60 is: 613,461.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,000.20 : 1,174,500.30 = 408,974.60 : x
  2. Step 2: Convert to fraction form
    783,000.20/1,174,500.30 = 408,974.60/x
  3. Step 3: Cross multiply
    783,000.20x = 1,174,500.30 × 408,974.60
  4. Step 4: Simplify right side
    783,000.20x = 480,340,790,392.38
  5. Step 5: Solve for x
    x = 480,340,790,392.38/783,000.20
  6. Step 6: Final answer
    x = 613,461.90

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Similar ratio
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1.5x scale

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.