Home / 1,239,828-1,859,741.92-398,970.24

Finding the Fourth Proportional to 1,239,828, 1,859,741.92 and 398,970.24

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Solution

The fourth proportional to 1,239,828, 1,859,741.92 and 398,970.24 is: 598,455.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,828 : 1,859,741.92 = 398,970.24 : x
  2. Step 2: Convert to fraction form
    1,239,828/1,859,741.92 = 398,970.24/x
  3. Step 3: Cross multiply
    1,239,828x = 1,859,741.92 × 398,970.24
  4. Step 4: Simplify right side
    1,239,828x = 741,981,680,160.46
  5. Step 5: Solve for x
    x = 741,981,680,160.46/1,239,828
  6. Step 6: Final answer
    x = 598,455.33

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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.