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Finding the Fourth Proportional to 529,575.45, 730,981.31 and 338,589.60

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Solution

The fourth proportional to 529,575.45, 730,981.31 and 338,589.60 is: 467,360.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,575.45 : 730,981.31 = 338,589.60 : x
  2. Step 2: Convert to fraction form
    529,575.45/730,981.31 = 338,589.60/x
  3. Step 3: Cross multiply
    529,575.45x = 730,981.31 × 338,589.60
  4. Step 4: Simplify right side
    529,575.45x = 247,502,667,667.43
  5. Step 5: Solve for x
    x = 247,502,667,667.43/529,575.45
  6. Step 6: Final answer
    x = 467,360.54

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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.