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Finding the Fourth Proportional to 378,061.80, 567,092.70 and 326,740.20

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Solution

The fourth proportional to 378,061.80, 567,092.70 and 326,740.20 is: 490,110.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,061.80 : 567,092.70 = 326,740.20 : x
  2. Step 2: Convert to fraction form
    378,061.80/567,092.70 = 326,740.20/x
  3. Step 3: Cross multiply
    378,061.80x = 567,092.70 × 326,740.20
  4. Step 4: Simplify right side
    378,061.80x = 185,291,982,216.54
  5. Step 5: Solve for x
    x = 185,291,982,216.54/378,061.80
  6. Step 6: Final answer
    x = 490,110.30

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1.5x scale

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.