Home / 783,441.68-1,081,088.52-443,963.12

Finding the Fourth Proportional to 783,441.68, 1,081,088.52 and 443,963.12

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Solution

The fourth proportional to 783,441.68, 1,081,088.52 and 443,963.12 is: 612,634.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,441.68 : 1,081,088.52 = 443,963.12 : x
  2. Step 2: Convert to fraction form
    783,441.68/1,081,088.52 = 443,963.12/x
  3. Step 3: Cross multiply
    783,441.68x = 1,081,088.52 × 443,963.12
  4. Step 4: Simplify right side
    783,441.68x = 479,963,432,335.38
  5. Step 5: Solve for x
    x = 479,963,432,335.38/783,441.68
  6. Step 6: Final answer
    x = 612,634.54

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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.