Home / 987,540.30-1,481,310.45-356,474.70

Finding the Fourth Proportional to 987,540.30, 1,481,310.45 and 356,474.70

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Solution

The fourth proportional to 987,540.30, 1,481,310.45 and 356,474.70 is: 534,712.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,540.30 : 1,481,310.45 = 356,474.70 : x
  2. Step 2: Convert to fraction form
    987,540.30/1,481,310.45 = 356,474.70/x
  3. Step 3: Cross multiply
    987,540.30x = 1,481,310.45 × 356,474.70
  4. Step 4: Simplify right side
    987,540.30x = 528,049,698,270.62
  5. Step 5: Solve for x
    x = 528,049,698,270.62/987,540.30
  6. Step 6: Final answer
    x = 534,712.05

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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.