Home / 467,921.90-645,575.18-381,731.90

Finding the Fourth Proportional to 467,921.90, 645,575.18 and 381,731.90

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Solution

The fourth proportional to 467,921.90, 645,575.18 and 381,731.90 is: 526,661.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,921.90 : 645,575.18 = 381,731.90 : x
  2. Step 2: Convert to fraction form
    467,921.90/645,575.18 = 381,731.90/x
  3. Step 3: Cross multiply
    467,921.90x = 645,575.18 × 381,731.90
  4. Step 4: Simplify right side
    467,921.90x = 246,436,640,054.24
  5. Step 5: Solve for x
    x = 246,436,640,054.24/467,921.90
  6. Step 6: Final answer
    x = 526,661.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.