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Finding the Fourth Proportional to 540,171.05, 745,415.95 and 298,448.42

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Solution

The fourth proportional to 540,171.05, 745,415.95 and 298,448.42 is: 411,847.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,171.05 : 745,415.95 = 298,448.42 : x
  2. Step 2: Convert to fraction form
    540,171.05/745,415.95 = 298,448.42/x
  3. Step 3: Cross multiply
    540,171.05x = 745,415.95 × 298,448.42
  4. Step 4: Simplify right side
    540,171.05x = 222,468,212,520.30
  5. Step 5: Solve for x
    x = 222,468,212,520.30/540,171.05
  6. Step 6: Final answer
    x = 411,847.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.