Home / 1,040,674.20-1,561,011.30-977,688.60

Finding the Fourth Proportional to 1,040,674.20, 1,561,011.30 and 977,688.60

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Solution

The fourth proportional to 1,040,674.20, 1,561,011.30 and 977,688.60 is: 1,466,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,674.20 : 1,561,011.30 = 977,688.60 : x
  2. Step 2: Convert to fraction form
    1,040,674.20/1,561,011.30 = 977,688.60/x
  3. Step 3: Cross multiply
    1,040,674.20x = 1,561,011.30 × 977,688.60
  4. Step 4: Simplify right side
    1,040,674.20x = 1,526,182,952,481.18
  5. Step 5: Solve for x
    x = 1,526,182,952,481.18/1,040,674.20
  6. Step 6: Final answer
    x = 1,466,532.90

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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.