Home / 412,927.92-618,973.65-279,821.70

Finding the Fourth Proportional to 412,927.92, 618,973.65 and 279,821.70

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Solution

The fourth proportional to 412,927.92, 618,973.65 and 279,821.70 is: 419,449.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,927.92 : 618,973.65 = 279,821.70 : x
  2. Step 2: Convert to fraction form
    412,927.92/618,973.65 = 279,821.70/x
  3. Step 3: Cross multiply
    412,927.92x = 618,973.65 × 279,821.70
  4. Step 4: Simplify right side
    412,927.92x = 173,202,258,998.21
  5. Step 5: Solve for x
    x = 173,202,258,998.21/412,927.92
  6. Step 6: Final answer
    x = 419,449.14

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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.