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Finding the Fourth Proportional to 452,680.63, 679,018.29 and 115,720.81

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Solution

The fourth proportional to 452,680.63, 679,018.29 and 115,720.81 is: 173,580.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,680.63 : 679,018.29 = 115,720.81 : x
  2. Step 2: Convert to fraction form
    452,680.63/679,018.29 = 115,720.81/x
  3. Step 3: Cross multiply
    452,680.63x = 679,018.29 × 115,720.81
  4. Step 4: Simplify right side
    452,680.63x = 78,576,546,523.61
  5. Step 5: Solve for x
    x = 78,576,546,523.61/452,680.63
  6. Step 6: Final answer
    x = 173,580.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.