Home / 386,534.92-579,857.07-120,322.34

Finding the Fourth Proportional to 386,534.92, 579,857.07 and 120,322.34

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Solution

The fourth proportional to 386,534.92, 579,857.07 and 120,322.34 is: 180,500.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,534.92 : 579,857.07 = 120,322.34 : x
  2. Step 2: Convert to fraction form
    386,534.92/579,857.07 = 120,322.34/x
  3. Step 3: Cross multiply
    386,534.92x = 579,857.07 × 120,322.34
  4. Step 4: Simplify right side
    386,534.92x = 69,769,759,527.94
  5. Step 5: Solve for x
    x = 69,769,759,527.94/386,534.92
  6. Step 6: Final answer
    x = 180,500.54

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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.