Home / 1,040,106.80-1,560,160.20-685,521.20

Finding the Fourth Proportional to 1,040,106.80, 1,560,160.20 and 685,521.20

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Solution

The fourth proportional to 1,040,106.80, 1,560,160.20 and 685,521.20 is: 1,028,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,106.80 : 1,560,160.20 = 685,521.20 : x
  2. Step 2: Convert to fraction form
    1,040,106.80/1,560,160.20 = 685,521.20/x
  3. Step 3: Cross multiply
    1,040,106.80x = 1,560,160.20 × 685,521.20
  4. Step 4: Simplify right side
    1,040,106.80x = 1,069,522,892,496.24
  5. Step 5: Solve for x
    x = 1,069,522,892,496.24/1,040,106.80
  6. Step 6: Final answer
    x = 1,028,281.80

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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.