Home / 390,238.40-584,891.66-200,789.52

Finding the Fourth Proportional to 390,238.40, 584,891.66 and 200,789.52

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Solution

The fourth proportional to 390,238.40, 584,891.66 and 200,789.52 is: 300,944.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,238.40 : 584,891.66 = 200,789.52 : x
  2. Step 2: Convert to fraction form
    390,238.40/584,891.66 = 200,789.52/x
  3. Step 3: Cross multiply
    390,238.40x = 584,891.66 × 200,789.52
  4. Step 4: Simplify right side
    390,238.40x = 117,440,114,659.46
  5. Step 5: Solve for x
    x = 117,440,114,659.46/390,238.40
  6. Step 6: Final answer
    x = 300,944.54

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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.