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Finding the Fourth Proportional to 539,479.23, 744,024.25 and 324,579.14

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Solution

The fourth proportional to 539,479.23, 744,024.25 and 324,579.14 is: 447,644.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,479.23 : 744,024.25 = 324,579.14 : x
  2. Step 2: Convert to fraction form
    539,479.23/744,024.25 = 324,579.14/x
  3. Step 3: Cross multiply
    539,479.23x = 744,024.25 × 324,579.14
  4. Step 4: Simplify right side
    539,479.23x = 241,494,751,204.15
  5. Step 5: Solve for x
    x = 241,494,751,204.15/539,479.23
  6. Step 6: Final answer
    x = 447,644.21

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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.