Home / 870,926.80-1,306,390.32-271,939.24

Finding the Fourth Proportional to 870,926.80, 1,306,390.32 and 271,939.24

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Solution

The fourth proportional to 870,926.80, 1,306,390.32 and 271,939.24 is: 407,908.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,926.80 : 1,306,390.32 = 271,939.24 : x
  2. Step 2: Convert to fraction form
    870,926.80/1,306,390.32 = 271,939.24/x
  3. Step 3: Cross multiply
    870,926.80x = 1,306,390.32 × 271,939.24
  4. Step 4: Simplify right side
    870,926.80x = 355,258,790,764.16
  5. Step 5: Solve for x
    x = 355,258,790,764.16/870,926.80
  6. Step 6: Final answer
    x = 407,908.90

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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.