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Finding the Fourth Proportional to 539,891.44, 745,041.72 and 298,168.08

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Solution

The fourth proportional to 539,891.44, 745,041.72 and 298,168.08 is: 411,467.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,891.44 : 745,041.72 = 298,168.08 : x
  2. Step 2: Convert to fraction form
    539,891.44/745,041.72 = 298,168.08/x
  3. Step 3: Cross multiply
    539,891.44x = 745,041.72 × 298,168.08
  4. Step 4: Simplify right side
    539,891.44x = 222,147,659,172.30
  5. Step 5: Solve for x
    x = 222,147,659,172.30/539,891.44
  6. Step 6: Final answer
    x = 411,467.27

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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.