Home / 498,113.22-687,368.25-283,305.54

Finding the Fourth Proportional to 498,113.22, 687,368.25 and 283,305.54

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Solution

The fourth proportional to 498,113.22, 687,368.25 and 283,305.54 is: 390,945.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,113.22 : 687,368.25 = 283,305.54 : x
  2. Step 2: Convert to fraction form
    498,113.22/687,368.25 = 283,305.54/x
  3. Step 3: Cross multiply
    498,113.22x = 687,368.25 × 283,305.54
  4. Step 4: Simplify right side
    498,113.22x = 194,735,233,245.11
  5. Step 5: Solve for x
    x = 194,735,233,245.11/498,113.22
  6. Step 6: Final answer
    x = 390,945.72

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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.