Home / 386,981.74-580,475.84-106,514.38

Finding the Fourth Proportional to 386,981.74, 580,475.84 and 106,514.38

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Solution

The fourth proportional to 386,981.74, 580,475.84 and 106,514.38 is: 159,772.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,981.74 : 580,475.84 = 106,514.38 : x
  2. Step 2: Convert to fraction form
    386,981.74/580,475.84 = 106,514.38/x
  3. Step 3: Cross multiply
    386,981.74x = 580,475.84 × 106,514.38
  4. Step 4: Simplify right side
    386,981.74x = 61,829,024,202.58
  5. Step 5: Solve for x
    x = 61,829,024,202.58/386,981.74
  6. Step 6: Final answer
    x = 159,772.46

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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.