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Finding the Fourth Proportional to 580,825.80, 871,281.90 and 206,800.20

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Solution

The fourth proportional to 580,825.80, 871,281.90 and 206,800.20 is: 310,215.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,825.80 : 871,281.90 = 206,800.20 : x
  2. Step 2: Convert to fraction form
    580,825.80/871,281.90 = 206,800.20/x
  3. Step 3: Cross multiply
    580,825.80x = 871,281.90 × 206,800.20
  4. Step 4: Simplify right side
    580,825.80x = 180,181,271,176.38
  5. Step 5: Solve for x
    x = 180,181,271,176.38/580,825.80
  6. Step 6: Final answer
    x = 310,215.68

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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.