Home / 787,838.12-1,087,202.28-443,672.65

Finding the Fourth Proportional to 787,838.12, 1,087,202.28 and 443,672.65

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Solution

The fourth proportional to 787,838.12, 1,087,202.28 and 443,672.65 is: 612,260.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,838.12 : 1,087,202.28 = 443,672.65 : x
  2. Step 2: Convert to fraction form
    787,838.12/1,087,202.28 = 443,672.65/x
  3. Step 3: Cross multiply
    787,838.12x = 1,087,202.28 × 443,672.65
  4. Step 4: Simplify right side
    787,838.12x = 482,361,916,653.64
  5. Step 5: Solve for x
    x = 482,361,916,653.64/787,838.12
  6. Step 6: Final answer
    x = 612,260.19

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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.