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Finding the Fourth Proportional to 580,653.10, 870,979.32 and 181,328.09

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Solution

The fourth proportional to 580,653.10, 870,979.32 and 181,328.09 is: 271,992.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,653.10 : 870,979.32 = 181,328.09 : x
  2. Step 2: Convert to fraction form
    580,653.10/870,979.32 = 181,328.09/x
  3. Step 3: Cross multiply
    580,653.10x = 870,979.32 × 181,328.09
  4. Step 4: Simplify right side
    580,653.10x = 157,933,019,382.53
  5. Step 5: Solve for x
    x = 157,933,019,382.53/580,653.10
  6. Step 6: Final answer
    x = 271,992.04

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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.