Home / 765,892.67-1,056,939.71-421,760.60

Finding the Fourth Proportional to 765,892.67, 1,056,939.71 and 421,760.60

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Solution

The fourth proportional to 765,892.67, 1,056,939.71 and 421,760.60 is: 582,033.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,892.67 : 1,056,939.71 = 421,760.60 : x
  2. Step 2: Convert to fraction form
    765,892.67/1,056,939.71 = 421,760.60/x
  3. Step 3: Cross multiply
    765,892.67x = 1,056,939.71 × 421,760.60
  4. Step 4: Simplify right side
    765,892.67x = 445,775,526,253.43
  5. Step 5: Solve for x
    x = 445,775,526,253.43/765,892.67
  6. Step 6: Final answer
    x = 582,033.94

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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.