Home / 1,106,929.20-1,660,876.27-387,786.80

Finding the Fourth Proportional to 1,106,929.20, 1,660,876.27 and 387,786.80

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Solution

The fourth proportional to 1,106,929.20, 1,660,876.27 and 387,786.80 is: 581,849.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,929.20 : 1,660,876.27 = 387,786.80 : x
  2. Step 2: Convert to fraction form
    1,106,929.20/1,660,876.27 = 387,786.80/x
  3. Step 3: Cross multiply
    1,106,929.20x = 1,660,876.27 × 387,786.80
  4. Step 4: Simplify right side
    1,106,929.20x = 644,065,897,121.96
  5. Step 5: Solve for x
    x = 644,065,897,121.96/1,106,929.20
  6. Step 6: Final answer
    x = 581,849.22

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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.