Home / 987,740.20-1,481,610.30-683,309.80

Finding the Fourth Proportional to 987,740.20, 1,481,610.30 and 683,309.80

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Solution

The fourth proportional to 987,740.20, 1,481,610.30 and 683,309.80 is: 1,024,964.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,740.20 : 1,481,610.30 = 683,309.80 : x
  2. Step 2: Convert to fraction form
    987,740.20/1,481,610.30 = 683,309.80/x
  3. Step 3: Cross multiply
    987,740.20x = 1,481,610.30 × 683,309.80
  4. Step 4: Simplify right side
    987,740.20x = 1,012,398,837,770.94
  5. Step 5: Solve for x
    x = 1,012,398,837,770.94/987,740.20
  6. Step 6: Final answer
    x = 1,024,964.70

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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.