Home / 889,719.60-1,337,689.80-871,057.20

Finding the Fourth Proportional to 889,719.60, 1,337,689.80 and 871,057.20

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Solution

The fourth proportional to 889,719.60, 1,337,689.80 and 871,057.20 is: 1,309,630.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,719.60 : 1,337,689.80 = 871,057.20 : x
  2. Step 2: Convert to fraction form
    889,719.60/1,337,689.80 = 871,057.20/x
  3. Step 3: Cross multiply
    889,719.60x = 1,337,689.80 × 871,057.20
  4. Step 4: Simplify right side
    889,719.60x = 1,165,204,331,656.56
  5. Step 5: Solve for x
    x = 1,165,204,331,656.56/889,719.60
  6. Step 6: Final answer
    x = 1,309,630.96

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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.