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Finding the Fourth Proportional to 439,128.43, 605,763.47 and 267,099.01

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Solution

The fourth proportional to 439,128.43, 605,763.47 and 267,099.01 is: 368,454.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,128.43 : 605,763.47 = 267,099.01 : x
  2. Step 2: Convert to fraction form
    439,128.43/605,763.47 = 267,099.01/x
  3. Step 3: Cross multiply
    439,128.43x = 605,763.47 × 267,099.01
  4. Step 4: Simplify right side
    439,128.43x = 161,798,823,131.17
  5. Step 5: Solve for x
    x = 161,798,823,131.17/439,128.43
  6. Step 6: Final answer
    x = 368,454.45

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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.