Home / 498,428.11-687,846.36-283,599.10

Finding the Fourth Proportional to 498,428.11, 687,846.36 and 283,599.10

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Solution

The fourth proportional to 498,428.11, 687,846.36 and 283,599.10 is: 391,375.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,428.11 : 687,846.36 = 283,599.10 : x
  2. Step 2: Convert to fraction form
    498,428.11/687,846.36 = 283,599.10/x
  3. Step 3: Cross multiply
    498,428.11x = 687,846.36 × 283,599.10
  4. Step 4: Simplify right side
    498,428.11x = 195,072,608,634.28
  5. Step 5: Solve for x
    x = 195,072,608,634.28/498,428.11
  6. Step 6: Final answer
    x = 391,375.62

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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.