Home / 389,956.20-584,480.70-179,615.40

Finding the Fourth Proportional to 389,956.20, 584,480.70 and 179,615.40

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Solution

The fourth proportional to 389,956.20, 584,480.70 and 179,615.40 is: 269,214.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,956.20 : 584,480.70 = 179,615.40 : x
  2. Step 2: Convert to fraction form
    389,956.20/584,480.70 = 179,615.40/x
  3. Step 3: Cross multiply
    389,956.20x = 584,480.70 × 179,615.40
  4. Step 4: Simplify right side
    389,956.20x = 104,981,734,722.78
  5. Step 5: Solve for x
    x = 104,981,734,722.78/389,956.20
  6. Step 6: Final answer
    x = 269,214.17

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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.