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Finding the Fourth Proportional to 454,912.64, 627,780.48 and 253,721.60

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Solution

The fourth proportional to 454,912.64, 627,780.48 and 253,721.60 is: 350,136.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,912.64 : 627,780.48 = 253,721.60 : x
  2. Step 2: Convert to fraction form
    454,912.64/627,780.48 = 253,721.60/x
  3. Step 3: Cross multiply
    454,912.64x = 627,780.48 × 253,721.60
  4. Step 4: Simplify right side
    454,912.64x = 159,281,467,834.37
  5. Step 5: Solve for x
    x = 159,281,467,834.37/454,912.64
  6. Step 6: Final answer
    x = 350,136.39

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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.