Home / 485,045.44-669,121.98-324,116.32

Finding the Fourth Proportional to 485,045.44, 669,121.98 and 324,116.32

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Solution

The fourth proportional to 485,045.44, 669,121.98 and 324,116.32 is: 447,119.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,045.44 : 669,121.98 = 324,116.32 : x
  2. Step 2: Convert to fraction form
    485,045.44/669,121.98 = 324,116.32/x
  3. Step 3: Cross multiply
    485,045.44x = 669,121.98 × 324,116.32
  4. Step 4: Simplify right side
    485,045.44x = 216,873,353,788.71
  5. Step 5: Solve for x
    x = 216,873,353,788.71/485,045.44
  6. Step 6: Final answer
    x = 447,119.66

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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.