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Finding the Fourth Proportional to 454,853.97, 627,661.65 and 261,199.90

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Solution

The fourth proportional to 454,853.97, 627,661.65 and 261,199.90 is: 360,434.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,853.97 : 627,661.65 = 261,199.90 : x
  2. Step 2: Convert to fraction form
    454,853.97/627,661.65 = 261,199.90/x
  3. Step 3: Cross multiply
    454,853.97x = 627,661.65 × 261,199.90
  4. Step 4: Simplify right side
    454,853.97x = 163,945,162,676.91
  5. Step 5: Solve for x
    x = 163,945,162,676.91/454,853.97
  6. Step 6: Final answer
    x = 360,434.72

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1.5x scale

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.