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Finding the Fourth Proportional to 418,995.28, 628,616.85 and 241,629.58

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Solution

The fourth proportional to 418,995.28, 628,616.85 and 241,629.58 is: 362,515.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,995.28 : 628,616.85 = 241,629.58 : x
  2. Step 2: Convert to fraction form
    418,995.28/628,616.85 = 241,629.58/x
  3. Step 3: Cross multiply
    418,995.28x = 628,616.85 × 241,629.58
  4. Step 4: Simplify right side
    418,995.28x = 151,892,426,685.25
  5. Step 5: Solve for x
    x = 151,892,426,685.25/418,995.28
  6. Step 6: Final answer
    x = 362,515.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.