Home / 702,981.20-1,053,694.20-387,664.40

Finding the Fourth Proportional to 702,981.20, 1,053,694.20 and 387,664.40

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Solution

The fourth proportional to 702,981.20, 1,053,694.20 and 387,664.40 is: 581,067.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,981.20 : 1,053,694.20 = 387,664.40 : x
  2. Step 2: Convert to fraction form
    702,981.20/1,053,694.20 = 387,664.40/x
  3. Step 3: Cross multiply
    702,981.20x = 1,053,694.20 × 387,664.40
  4. Step 4: Simplify right side
    702,981.20x = 408,479,729,826.48
  5. Step 5: Solve for x
    x = 408,479,729,826.48/702,981.20
  6. Step 6: Final answer
    x = 581,067.79

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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.