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Finding the Fourth Proportional to 529,645.41, 730,907.61 and 300,245.97

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Solution

The fourth proportional to 529,645.41, 730,907.61 and 300,245.97 is: 414,337.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,645.41 : 730,907.61 = 300,245.97 : x
  2. Step 2: Convert to fraction form
    529,645.41/730,907.61 = 300,245.97/x
  3. Step 3: Cross multiply
    529,645.41x = 730,907.61 × 300,245.97
  4. Step 4: Simplify right side
    529,645.41x = 219,452,064,344.83
  5. Step 5: Solve for x
    x = 219,452,064,344.83/529,645.41
  6. Step 6: Final answer
    x = 414,337.71

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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.