Home / 871,310.70-1,306,966.05-231,613.20

Finding the Fourth Proportional to 871,310.70, 1,306,966.05 and 231,613.20

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Solution

The fourth proportional to 871,310.70, 1,306,966.05 and 231,613.20 is: 347,419.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,310.70 : 1,306,966.05 = 231,613.20 : x
  2. Step 2: Convert to fraction form
    871,310.70/1,306,966.05 = 231,613.20/x
  3. Step 3: Cross multiply
    871,310.70x = 1,306,966.05 × 231,613.20
  4. Step 4: Simplify right side
    871,310.70x = 302,710,589,131.86
  5. Step 5: Solve for x
    x = 302,710,589,131.86/871,310.70
  6. Step 6: Final answer
    x = 347,419.80

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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.