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Finding the Fourth Proportional to 540,171.20, 810,765.12 and 274,122.56

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Solution

The fourth proportional to 540,171.20, 810,765.12 and 274,122.56 is: 411,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,171.20 : 810,765.12 = 274,122.56 : x
  2. Step 2: Convert to fraction form
    540,171.20/810,765.12 = 274,122.56/x
  3. Step 3: Cross multiply
    540,171.20x = 810,765.12 × 274,122.56
  4. Step 4: Simplify right side
    540,171.20x = 222,249,010,253.11
  5. Step 5: Solve for x
    x = 222,249,010,253.11/540,171.20
  6. Step 6: Final answer
    x = 411,441.80

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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.