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Finding the Fourth Proportional to 659,078.28, 988,261.68 and 299,052.66

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Solution

The fourth proportional to 659,078.28, 988,261.68 and 299,052.66 is: 448,417.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,078.28 : 988,261.68 = 299,052.66 : x
  2. Step 2: Convert to fraction form
    659,078.28/988,261.68 = 299,052.66/x
  3. Step 3: Cross multiply
    659,078.28x = 988,261.68 × 299,052.66
  4. Step 4: Simplify right side
    659,078.28x = 295,542,284,180.07
  5. Step 5: Solve for x
    x = 295,542,284,180.07/659,078.28
  6. Step 6: Final answer
    x = 448,417.58

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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.