Home / 386,619.14-580,012.13-116,724.89

Finding the Fourth Proportional to 386,619.14, 580,012.13 and 116,724.89

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Solution

The fourth proportional to 386,619.14, 580,012.13 and 116,724.89 is: 175,112.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,619.14 : 580,012.13 = 116,724.89 : x
  2. Step 2: Convert to fraction form
    386,619.14/580,012.13 = 116,724.89/x
  3. Step 3: Cross multiply
    386,619.14x = 580,012.13 × 116,724.89
  4. Step 4: Simplify right side
    386,619.14x = 67,701,852,072.92
  5. Step 5: Solve for x
    x = 67,701,852,072.92/386,619.14
  6. Step 6: Final answer
    x = 175,112.52

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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.