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Finding the Fourth Proportional to 529,719.75, 730,851.66 and 300,240.27

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Solution

The fourth proportional to 529,719.75, 730,851.66 and 300,240.27 is: 414,239.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,719.75 : 730,851.66 = 300,240.27 : x
  2. Step 2: Convert to fraction form
    529,719.75/730,851.66 = 300,240.27/x
  3. Step 3: Cross multiply
    529,719.75x = 730,851.66 × 300,240.27
  4. Step 4: Simplify right side
    529,719.75x = 219,431,099,728.35
  5. Step 5: Solve for x
    x = 219,431,099,728.35/529,719.75
  6. Step 6: Final answer
    x = 414,239.98

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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.