Home / 389,327.24-583,987.16-123,087.72

Finding the Fourth Proportional to 389,327.24, 583,987.16 and 123,087.72

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Solution

The fourth proportional to 389,327.24, 583,987.16 and 123,087.72 is: 184,630.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,327.24 : 583,987.16 = 123,087.72 : x
  2. Step 2: Convert to fraction form
    389,327.24/583,987.16 = 123,087.72/x
  3. Step 3: Cross multiply
    389,327.24x = 583,987.16 × 123,087.72
  4. Step 4: Simplify right side
    389,327.24x = 71,881,647,418.24
  5. Step 5: Solve for x
    x = 71,881,647,418.24/389,327.24
  6. Step 6: Final answer
    x = 184,630.41

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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.