Home / 407,721.57-611,534.84-108,225.42

Finding the Fourth Proportional to 407,721.57, 611,534.84 and 108,225.42

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Solution

The fourth proportional to 407,721.57, 611,534.84 and 108,225.42 is: 162,325.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,721.57 : 611,534.84 = 108,225.42 : x
  2. Step 2: Convert to fraction form
    407,721.57/611,534.84 = 108,225.42/x
  3. Step 3: Cross multiply
    407,721.57x = 611,534.84 × 108,225.42
  4. Step 4: Simplify right side
    407,721.57x = 66,183,615,891.34
  5. Step 5: Solve for x
    x = 66,183,615,891.34/407,721.57
  6. Step 6: Final answer
    x = 162,325.52

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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.