Home / 389,747.88-584,638.08-123,502.50

Finding the Fourth Proportional to 389,747.88, 584,638.08 and 123,502.50

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Solution

The fourth proportional to 389,747.88, 584,638.08 and 123,502.50 is: 185,258.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,747.88 : 584,638.08 = 123,502.50 : x
  2. Step 2: Convert to fraction form
    389,747.88/584,638.08 = 123,502.50/x
  3. Step 3: Cross multiply
    389,747.88x = 584,638.08 × 123,502.50
  4. Step 4: Simplify right side
    389,747.88x = 72,204,264,475.20
  5. Step 5: Solve for x
    x = 72,204,264,475.20/389,747.88
  6. Step 6: Final answer
    x = 185,258.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.