Home / 498,167.11-687,485.78-283,338.10

Finding the Fourth Proportional to 498,167.11, 687,485.78 and 283,338.10

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Solution

The fourth proportional to 498,167.11, 687,485.78 and 283,338.10 is: 391,015.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,167.11 : 687,485.78 = 283,338.10 : x
  2. Step 2: Convert to fraction form
    498,167.11/687,485.78 = 283,338.10/x
  3. Step 3: Cross multiply
    498,167.11x = 687,485.78 × 283,338.10
  4. Step 4: Simplify right side
    498,167.11x = 194,790,914,682.22
  5. Step 5: Solve for x
    x = 194,790,914,682.22/498,167.11
  6. Step 6: Final answer
    x = 391,015.21

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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.