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Finding the Fourth Proportional to 540,089.62, 745,367.25 and 298,393.30

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Solution

The fourth proportional to 540,089.62, 745,367.25 and 298,393.30 is: 411,806.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,089.62 : 745,367.25 = 298,393.30 : x
  2. Step 2: Convert to fraction form
    540,089.62/745,367.25 = 298,393.30/x
  3. Step 3: Cross multiply
    540,089.62x = 745,367.25 × 298,393.30
  4. Step 4: Simplify right side
    540,089.62x = 222,412,593,439.43
  5. Step 5: Solve for x
    x = 222,412,593,439.43/540,089.62
  6. Step 6: Final answer
    x = 411,806.83

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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.