Home / 876,639.20-1,314,958.80-856,956.20

Finding the Fourth Proportional to 876,639.20, 1,314,958.80 and 856,956.20

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Solution

The fourth proportional to 876,639.20, 1,314,958.80 and 856,956.20 is: 1,285,434.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,639.20 : 1,314,958.80 = 856,956.20 : x
  2. Step 2: Convert to fraction form
    876,639.20/1,314,958.80 = 856,956.20/x
  3. Step 3: Cross multiply
    876,639.20x = 1,314,958.80 × 856,956.20
  4. Step 4: Simplify right side
    876,639.20x = 1,126,862,096,404.56
  5. Step 5: Solve for x
    x = 1,126,862,096,404.56/876,639.20
  6. Step 6: Final answer
    x = 1,285,434.30

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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.