Home / 870,980.65-1,306,470.49-271,993.14

Finding the Fourth Proportional to 870,980.65, 1,306,470.49 and 271,993.14

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Solution

The fourth proportional to 870,980.65, 1,306,470.49 and 271,993.14 is: 407,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,980.65 : 1,306,470.49 = 271,993.14 : x
  2. Step 2: Convert to fraction form
    870,980.65/1,306,470.49 = 271,993.14/x
  3. Step 3: Cross multiply
    870,980.65x = 1,306,470.49 × 271,993.14
  4. Step 4: Simplify right side
    870,980.65x = 355,351,010,892.44
  5. Step 5: Solve for x
    x = 355,351,010,892.44/870,980.65
  6. Step 6: Final answer
    x = 407,989.56

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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.