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Finding the Fourth Proportional to 580,930.20, 871,395.30 and 206,965.40

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Solution

The fourth proportional to 580,930.20, 871,395.30 and 206,965.40 is: 310,448.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,930.20 : 871,395.30 = 206,965.40 : x
  2. Step 2: Convert to fraction form
    580,930.20/871,395.30 = 206,965.40/x
  3. Step 3: Cross multiply
    580,930.20x = 871,395.30 × 206,965.40
  4. Step 4: Simplify right side
    580,930.20x = 180,348,676,822.62
  5. Step 5: Solve for x
    x = 180,348,676,822.62/580,930.20
  6. Step 6: Final answer
    x = 310,448.10

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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.