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Finding the Fourth Proportional to 520,743.44, 718,592.04 and 291,260.97

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Solution

The fourth proportional to 520,743.44, 718,592.04 and 291,260.97 is: 401,921.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,743.44 : 718,592.04 = 291,260.97 : x
  2. Step 2: Convert to fraction form
    520,743.44/718,592.04 = 291,260.97/x
  3. Step 3: Cross multiply
    520,743.44x = 718,592.04 × 291,260.97
  4. Step 4: Simplify right side
    520,743.44x = 209,297,814,604.68
  5. Step 5: Solve for x
    x = 209,297,814,604.68/520,743.44
  6. Step 6: Final answer
    x = 401,921.18

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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.