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Finding the Fourth Proportional to 1,819,742.73, 2,729,964.06 and 697,724.25

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Solution

The fourth proportional to 1,819,742.73, 2,729,964.06 and 697,724.25 is: 1,046,720.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,742.73 : 2,729,964.06 = 697,724.25 : x
  2. Step 2: Convert to fraction form
    1,819,742.73/2,729,964.06 = 697,724.25/x
  3. Step 3: Cross multiply
    1,819,742.73x = 2,729,964.06 × 697,724.25
  4. Step 4: Simplify right side
    1,819,742.73x = 1,904,762,126,290.46
  5. Step 5: Solve for x
    x = 1,904,762,126,290.46/1,819,742.73
  6. Step 6: Final answer
    x = 1,046,720.56

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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.