Home / 1,040,666.80-1,561,000.20-788,724.40

Finding the Fourth Proportional to 1,040,666.80, 1,561,000.20 and 788,724.40

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Solution

The fourth proportional to 1,040,666.80, 1,561,000.20 and 788,724.40 is: 1,183,086.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,666.80 : 1,561,000.20 = 788,724.40 : x
  2. Step 2: Convert to fraction form
    1,040,666.80/1,561,000.20 = 788,724.40/x
  3. Step 3: Cross multiply
    1,040,666.80x = 1,561,000.20 × 788,724.40
  4. Step 4: Simplify right side
    1,040,666.80x = 1,231,198,946,144.88
  5. Step 5: Solve for x
    x = 1,231,198,946,144.88/1,040,666.80
  6. Step 6: Final answer
    x = 1,183,086.60

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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.