Home / 987,342.38-1,481,013.77-239,388.38

Finding the Fourth Proportional to 987,342.38, 1,481,013.77 and 239,388.38

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Solution

The fourth proportional to 987,342.38, 1,481,013.77 and 239,388.38 is: 359,082.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,342.38 : 1,481,013.77 = 239,388.38 : x
  2. Step 2: Convert to fraction form
    987,342.38/1,481,013.77 = 239,388.38/x
  3. Step 3: Cross multiply
    987,342.38x = 1,481,013.77 × 239,388.38
  4. Step 4: Simplify right side
    987,342.38x = 354,537,478,555.98
  5. Step 5: Solve for x
    x = 354,537,478,555.98/987,342.38
  6. Step 6: Final answer
    x = 359,082.61

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1.5x scale

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.