Home / 422,747.10-583,615.53-287,503.02

Finding the Fourth Proportional to 422,747.10, 583,615.53 and 287,503.02

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Solution

The fourth proportional to 422,747.10, 583,615.53 and 287,503.02 is: 396,906.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,747.10 : 583,615.53 = 287,503.02 : x
  2. Step 2: Convert to fraction form
    422,747.10/583,615.53 = 287,503.02/x
  3. Step 3: Cross multiply
    422,747.10x = 583,615.53 × 287,503.02
  4. Step 4: Simplify right side
    422,747.10x = 167,791,227,393.90
  5. Step 5: Solve for x
    x = 167,791,227,393.90/422,747.10
  6. Step 6: Final answer
    x = 396,906.87

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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.