Home / 885,742.20-1,328,613.30-862,414.20

Finding the Fourth Proportional to 885,742.20, 1,328,613.30 and 862,414.20

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Solution

The fourth proportional to 885,742.20, 1,328,613.30 and 862,414.20 is: 1,293,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,742.20 : 1,328,613.30 = 862,414.20 : x
  2. Step 2: Convert to fraction form
    885,742.20/1,328,613.30 = 862,414.20/x
  3. Step 3: Cross multiply
    885,742.20x = 1,328,613.30 × 862,414.20
  4. Step 4: Simplify right side
    885,742.20x = 1,145,814,976,228.86
  5. Step 5: Solve for x
    x = 1,145,814,976,228.86/885,742.20
  6. Step 6: Final answer
    x = 1,293,621.30

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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.