Home / 904,724.25-1,248,522.85-491,261.56

Finding the Fourth Proportional to 904,724.25, 1,248,522.85 and 491,261.56

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Solution

The fourth proportional to 904,724.25, 1,248,522.85 and 491,261.56 is: 677,942.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,724.25 : 1,248,522.85 = 491,261.56 : x
  2. Step 2: Convert to fraction form
    904,724.25/1,248,522.85 = 491,261.56/x
  3. Step 3: Cross multiply
    904,724.25x = 1,248,522.85 × 491,261.56
  4. Step 4: Simplify right side
    904,724.25x = 613,351,283,990.89
  5. Step 5: Solve for x
    x = 613,351,283,990.89/904,724.25
  6. Step 6: Final answer
    x = 677,942.79

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Double scale
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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.