Home / 389,318.81-584,082.09-123,084.36

Finding the Fourth Proportional to 389,318.81, 584,082.09 and 123,084.36

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Solution

The fourth proportional to 389,318.81, 584,082.09 and 123,084.36 is: 184,659.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,318.81 : 584,082.09 = 123,084.36 : x
  2. Step 2: Convert to fraction form
    389,318.81/584,082.09 = 123,084.36/x
  3. Step 3: Cross multiply
    389,318.81x = 584,082.09 × 123,084.36
  4. Step 4: Simplify right side
    389,318.81x = 71,891,370,235.11
  5. Step 5: Solve for x
    x = 71,891,370,235.11/389,318.81
  6. Step 6: Final answer
    x = 184,659.38

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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.