Home / 1,278,028.60-1,917,315.06-379,472.92

Finding the Fourth Proportional to 1,278,028.60, 1,917,315.06 and 379,472.92

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Solution

The fourth proportional to 1,278,028.60, 1,917,315.06 and 379,472.92 is: 569,290.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,028.60 : 1,917,315.06 = 379,472.92 : x
  2. Step 2: Convert to fraction form
    1,278,028.60/1,917,315.06 = 379,472.92/x
  3. Step 3: Cross multiply
    1,278,028.60x = 1,917,315.06 × 379,472.92
  4. Step 4: Simplify right side
    1,278,028.60x = 727,569,144,378.18
  5. Step 5: Solve for x
    x = 727,569,144,378.18/1,278,028.60
  6. Step 6: Final answer
    x = 569,290.19

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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.