Home / 579,861.57-870,013.79-327,427.10

Finding the Fourth Proportional to 579,861.57, 870,013.79 and 327,427.10

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Solution

The fourth proportional to 579,861.57, 870,013.79 and 327,427.10 is: 491,265.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,861.57 : 870,013.79 = 327,427.10 : x
  2. Step 2: Convert to fraction form
    579,861.57/870,013.79 = 327,427.10/x
  3. Step 3: Cross multiply
    579,861.57x = 870,013.79 × 327,427.10
  4. Step 4: Simplify right side
    579,861.57x = 284,866,092,219.71
  5. Step 5: Solve for x
    x = 284,866,092,219.71/579,861.57
  6. Step 6: Final answer
    x = 491,265.69

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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.