Home / 1,660,338.40-2,491,285.20-862,520.80

Finding the Fourth Proportional to 1,660,338.40, 2,491,285.20 and 862,520.80

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Solution

The fourth proportional to 1,660,338.40, 2,491,285.20 and 862,520.80 is: 1,294,185.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660,338.40 : 2,491,285.20 = 862,520.80 : x
  2. Step 2: Convert to fraction form
    1,660,338.40/2,491,285.20 = 862,520.80/x
  3. Step 3: Cross multiply
    1,660,338.40x = 2,491,285.20 × 862,520.80
  4. Step 4: Simplify right side
    1,660,338.40x = 2,148,785,303,732.16
  5. Step 5: Solve for x
    x = 2,148,785,303,732.16/1,660,338.40
  6. Step 6: Final answer
    x = 1,294,185.15

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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.