Home / 764,654.73-1,055,206.35-415,787.61

Finding the Fourth Proportional to 764,654.73, 1,055,206.35 and 415,787.61

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Solution

The fourth proportional to 764,654.73, 1,055,206.35 and 415,787.61 is: 573,777.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,654.73 : 1,055,206.35 = 415,787.61 : x
  2. Step 2: Convert to fraction form
    764,654.73/1,055,206.35 = 415,787.61/x
  3. Step 3: Cross multiply
    764,654.73x = 1,055,206.35 × 415,787.61
  4. Step 4: Simplify right side
    764,654.73x = 438,741,726,323.32
  5. Step 5: Solve for x
    x = 438,741,726,323.32/764,654.73
  6. Step 6: Final answer
    x = 573,777.56

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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.