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Finding the Fourth Proportional to 497,321.75, 686,304.02 and 270,967.25

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Solution

The fourth proportional to 497,321.75, 686,304.02 and 270,967.25 is: 373,934.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,321.75 : 686,304.02 = 270,967.25 : x
  2. Step 2: Convert to fraction form
    497,321.75/686,304.02 = 270,967.25/x
  3. Step 3: Cross multiply
    497,321.75x = 686,304.02 × 270,967.25
  4. Step 4: Simplify right side
    497,321.75x = 185,965,912,963.35
  5. Step 5: Solve for x
    x = 185,965,912,963.35/497,321.75
  6. Step 6: Final answer
    x = 373,934.81

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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.