Home / 407,742.28-562,691.31-223,988.59

Finding the Fourth Proportional to 407,742.28, 562,691.31 and 223,988.59

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Solution

The fourth proportional to 407,742.28, 562,691.31 and 223,988.59 is: 309,108.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,742.28 : 562,691.31 = 223,988.59 : x
  2. Step 2: Convert to fraction form
    407,742.28/562,691.31 = 223,988.59/x
  3. Step 3: Cross multiply
    407,742.28x = 562,691.31 × 223,988.59
  4. Step 4: Simplify right side
    407,742.28x = 126,036,432,995.56
  5. Step 5: Solve for x
    x = 126,036,432,995.56/407,742.28
  6. Step 6: Final answer
    x = 309,108.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.