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Finding the Fourth Proportional to 571,517.48, 857,790.17 and 305,505.38

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Solution

The fourth proportional to 571,517.48, 857,790.17 and 305,505.38 is: 458,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,517.48 : 857,790.17 = 305,505.38 : x
  2. Step 2: Convert to fraction form
    571,517.48/857,790.17 = 305,505.38/x
  3. Step 3: Cross multiply
    571,517.48x = 857,790.17 × 305,505.38
  4. Step 4: Simplify right side
    571,517.48x = 262,059,506,029.64
  5. Step 5: Solve for x
    x = 262,059,506,029.64/571,517.48
  6. Step 6: Final answer
    x = 458,532.80

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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.