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Finding the Fourth Proportional to 526,989.92, 790,610.85 and 172,004.60

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Solution

The fourth proportional to 526,989.92, 790,610.85 and 172,004.60 is: 258,048.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,989.92 : 790,610.85 = 172,004.60 : x
  2. Step 2: Convert to fraction form
    526,989.92/790,610.85 = 172,004.60/x
  3. Step 3: Cross multiply
    526,989.92x = 790,610.85 × 172,004.60
  4. Step 4: Simplify right side
    526,989.92x = 135,988,703,009.91
  5. Step 5: Solve for x
    x = 135,988,703,009.91/526,989.92
  6. Step 6: Final answer
    x = 258,048.02

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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.