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Finding the Fourth Proportional to 580,028.65, 800,260.16 and 338,139.97

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Solution

The fourth proportional to 580,028.65, 800,260.16 and 338,139.97 is: 466,528.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,028.65 : 800,260.16 = 338,139.97 : x
  2. Step 2: Convert to fraction form
    580,028.65/800,260.16 = 338,139.97/x
  3. Step 3: Cross multiply
    580,028.65x = 800,260.16 × 338,139.97
  4. Step 4: Simplify right side
    580,028.65x = 270,599,942,803.25
  5. Step 5: Solve for x
    x = 270,599,942,803.25/580,028.65
  6. Step 6: Final answer
    x = 466,528.58

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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.