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Finding the Fourth Proportional to 454,924, 627,795.12 and 253,720

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Solution

The fourth proportional to 454,924, 627,795.12 and 253,720 is: 350,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,924 : 627,795.12 = 253,720 : x
  2. Step 2: Convert to fraction form
    454,924/627,795.12 = 253,720/x
  3. Step 3: Cross multiply
    454,924x = 627,795.12 × 253,720
  4. Step 4: Simplify right side
    454,924x = 159,284,177,846.40
  5. Step 5: Solve for x
    x = 159,284,177,846.40/454,924
  6. Step 6: Final answer
    x = 350,133.60

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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.