Home / 987,179.31-1,480,758.03-313,260.12

Finding the Fourth Proportional to 987,179.31, 1,480,758.03 and 313,260.12

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Solution

The fourth proportional to 987,179.31, 1,480,758.03 and 313,260.12 is: 469,886.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,179.31 : 1,480,758.03 = 313,260.12 : x
  2. Step 2: Convert to fraction form
    987,179.31/1,480,758.03 = 313,260.12/x
  3. Step 3: Cross multiply
    987,179.31x = 1,480,758.03 × 313,260.12
  4. Step 4: Simplify right side
    987,179.31x = 463,862,438,168.76
  5. Step 5: Solve for x
    x = 463,862,438,168.76/987,179.31
  6. Step 6: Final answer
    x = 469,886.71

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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.