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Finding the Fourth Proportional to 552,661.80, 828,992.70 and 412,693.80

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Solution

The fourth proportional to 552,661.80, 828,992.70 and 412,693.80 is: 619,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,661.80 : 828,992.70 = 412,693.80 : x
  2. Step 2: Convert to fraction form
    552,661.80/828,992.70 = 412,693.80/x
  3. Step 3: Cross multiply
    552,661.80x = 828,992.70 × 412,693.80
  4. Step 4: Simplify right side
    552,661.80x = 342,120,147,535.26
  5. Step 5: Solve for x
    x = 342,120,147,535.26/552,661.80
  6. Step 6: Final answer
    x = 619,040.70

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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.