Home / 2,660,165.72-3,990,809.02-862,908.88

Finding the Fourth Proportional to 2,660,165.72, 3,990,809.02 and 862,908.88

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Solution

The fourth proportional to 2,660,165.72, 3,990,809.02 and 862,908.88 is: 1,294,545.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,165.72 : 3,990,809.02 = 862,908.88 : x
  2. Step 2: Convert to fraction form
    2,660,165.72/3,990,809.02 = 862,908.88/x
  3. Step 3: Cross multiply
    2,660,165.72x = 3,990,809.02 × 862,908.88
  4. Step 4: Simplify right side
    2,660,165.72x = 3,443,704,541,742.10
  5. Step 5: Solve for x
    x = 3,443,704,541,742.10/2,660,165.72
  6. Step 6: Final answer
    x = 1,294,545.12

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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.