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Finding the Fourth Proportional to 609,096.78, 840,555.48 and 329,693.94

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Solution

The fourth proportional to 609,096.78, 840,555.48 and 329,693.94 is: 454,978.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,096.78 : 840,555.48 = 329,693.94 : x
  2. Step 2: Convert to fraction form
    609,096.78/840,555.48 = 329,693.94/x
  3. Step 3: Cross multiply
    609,096.78x = 840,555.48 × 329,693.94
  4. Step 4: Simplify right side
    609,096.78x = 277,126,047,989.79
  5. Step 5: Solve for x
    x = 277,126,047,989.79/609,096.78
  6. Step 6: Final answer
    x = 454,978.68

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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.