Home / 783,442.68-1,081,089.90-443,964.12

Finding the Fourth Proportional to 783,442.68, 1,081,089.90 and 443,964.12

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Solution

The fourth proportional to 783,442.68, 1,081,089.90 and 443,964.12 is: 612,635.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,442.68 : 1,081,089.90 = 443,964.12 : x
  2. Step 2: Convert to fraction form
    783,442.68/1,081,089.90 = 443,964.12/x
  3. Step 3: Cross multiply
    783,442.68x = 1,081,089.90 × 443,964.12
  4. Step 4: Simplify right side
    783,442.68x = 479,965,126,094.39
  5. Step 5: Solve for x
    x = 479,965,126,094.39/783,442.68
  6. Step 6: Final answer
    x = 612,635.92

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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.