Home / 684,613.28-1,026,543.92-211,167.20

Finding the Fourth Proportional to 684,613.28, 1,026,543.92 and 211,167.20

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Solution

The fourth proportional to 684,613.28, 1,026,543.92 and 211,167.20 is: 316,634.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,613.28 : 1,026,543.92 = 211,167.20 : x
  2. Step 2: Convert to fraction form
    684,613.28/1,026,543.92 = 211,167.20/x
  3. Step 3: Cross multiply
    684,613.28x = 1,026,543.92 × 211,167.20
  4. Step 4: Simplify right side
    684,613.28x = 216,772,405,263.42
  5. Step 5: Solve for x
    x = 216,772,405,263.42/684,613.28
  6. Step 6: Final answer
    x = 316,634.82

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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.