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Finding the Fourth Proportional to 523,128.96, 783,664.20 and 345,092.04

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Solution

The fourth proportional to 523,128.96, 783,664.20 and 345,092.04 is: 516,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,128.96 : 783,664.20 = 345,092.04 : x
  2. Step 2: Convert to fraction form
    523,128.96/783,664.20 = 345,092.04/x
  3. Step 3: Cross multiply
    523,128.96x = 783,664.20 × 345,092.04
  4. Step 4: Simplify right side
    523,128.96x = 270,436,277,452.97
  5. Step 5: Solve for x
    x = 270,436,277,452.97/523,128.96
  6. Step 6: Final answer
    x = 516,959.10

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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.