Home / 831,040.20-1,246,560.30-689,322.60

Finding the Fourth Proportional to 831,040.20, 1,246,560.30 and 689,322.60

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Solution

The fourth proportional to 831,040.20, 1,246,560.30 and 689,322.60 is: 1,033,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,040.20 : 1,246,560.30 = 689,322.60 : x
  2. Step 2: Convert to fraction form
    831,040.20/1,246,560.30 = 689,322.60/x
  3. Step 3: Cross multiply
    831,040.20x = 1,246,560.30 × 689,322.60
  4. Step 4: Simplify right side
    831,040.20x = 859,282,187,052.78
  5. Step 5: Solve for x
    x = 859,282,187,052.78/831,040.20
  6. Step 6: Final answer
    x = 1,033,983.90

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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.