Home / 1,107,632.20-1,660,136.10-826,821.40

Finding the Fourth Proportional to 1,107,632.20, 1,660,136.10 and 826,821.40

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Solution

The fourth proportional to 1,107,632.20, 1,660,136.10 and 826,821.40 is: 1,239,252.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,632.20 : 1,660,136.10 = 826,821.40 : x
  2. Step 2: Convert to fraction form
    1,107,632.20/1,660,136.10 = 826,821.40/x
  3. Step 3: Cross multiply
    1,107,632.20x = 1,660,136.10 × 826,821.40
  4. Step 4: Simplify right side
    1,107,632.20x = 1,372,636,054,392.54
  5. Step 5: Solve for x
    x = 1,372,636,054,392.54/1,107,632.20
  6. Step 6: Final answer
    x = 1,239,252.57

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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.