Home / 386,359.29-579,091.01-146,320.65

Finding the Fourth Proportional to 386,359.29, 579,091.01 and 146,320.65

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Solution

The fourth proportional to 386,359.29, 579,091.01 and 146,320.65 is: 219,311.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,359.29 : 579,091.01 = 146,320.65 : x
  2. Step 2: Convert to fraction form
    386,359.29/579,091.01 = 146,320.65/x
  3. Step 3: Cross multiply
    386,359.29x = 579,091.01 × 146,320.65
  4. Step 4: Simplify right side
    386,359.29x = 84,732,972,260.75
  5. Step 5: Solve for x
    x = 84,732,972,260.75/386,359.29
  6. Step 6: Final answer
    x = 219,311.34

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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.