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Finding the Fourth Proportional to 454,836, 627,686.64 and 253,644.96

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Solution

The fourth proportional to 454,836, 627,686.64 and 253,644.96 is: 350,037.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,836 : 627,686.64 = 253,644.96 : x
  2. Step 2: Convert to fraction form
    454,836/627,686.64 = 253,644.96/x
  3. Step 3: Cross multiply
    454,836x = 627,686.64 × 253,644.96
  4. Step 4: Simplify right side
    454,836x = 159,209,552,695.33
  5. Step 5: Solve for x
    x = 159,209,552,695.33/454,836
  6. Step 6: Final answer
    x = 350,037.27

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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.