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Finding the Fourth Proportional to 635,361.28, 953,042.26 and 398,870.04

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Solution

The fourth proportional to 635,361.28, 953,042.26 and 398,870.04 is: 598,305.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,361.28 : 953,042.26 = 398,870.04 : x
  2. Step 2: Convert to fraction form
    635,361.28/953,042.26 = 398,870.04/x
  3. Step 3: Cross multiply
    635,361.28x = 953,042.26 × 398,870.04
  4. Step 4: Simplify right side
    635,361.28x = 380,140,004,367.89
  5. Step 5: Solve for x
    x = 380,140,004,367.89/635,361.28
  6. Step 6: Final answer
    x = 598,305.27

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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.