Home / 389,318.58-583,974.22-123,079.12

Finding the Fourth Proportional to 389,318.58, 583,974.22 and 123,079.12

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Solution

The fourth proportional to 389,318.58, 583,974.22 and 123,079.12 is: 184,617.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,318.58 : 583,974.22 = 123,079.12 : x
  2. Step 2: Convert to fraction form
    389,318.58/583,974.22 = 123,079.12/x
  3. Step 3: Cross multiply
    389,318.58x = 583,974.22 × 123,079.12
  4. Step 4: Simplify right side
    389,318.58x = 71,875,033,378.93
  5. Step 5: Solve for x
    x = 71,875,033,378.93/389,318.58
  6. Step 6: Final answer
    x = 184,617.53

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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.