Home / 738,340.97-1,107,546.66-358,809.55

Finding the Fourth Proportional to 738,340.97, 1,107,546.66 and 358,809.55

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Solution

The fourth proportional to 738,340.97, 1,107,546.66 and 358,809.55 is: 538,231.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,340.97 : 1,107,546.66 = 358,809.55 : x
  2. Step 2: Convert to fraction form
    738,340.97/1,107,546.66 = 358,809.55/x
  3. Step 3: Cross multiply
    738,340.97x = 1,107,546.66 × 358,809.55
  4. Step 4: Simplify right side
    738,340.97x = 397,398,311,346.82
  5. Step 5: Solve for x
    x = 397,398,311,346.82/738,340.97
  6. Step 6: Final answer
    x = 538,231.42

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1.5x scale

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.