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Finding the Fourth Proportional to 1,866,739.80, 2,798,141.40 and 729,062.40

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Solution

The fourth proportional to 1,866,739.80, 2,798,141.40 and 729,062.40 is: 1,092,824.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,739.80 : 2,798,141.40 = 729,062.40 : x
  2. Step 2: Convert to fraction form
    1,866,739.80/2,798,141.40 = 729,062.40/x
  3. Step 3: Cross multiply
    1,866,739.80x = 2,798,141.40 × 729,062.40
  4. Step 4: Simplify right side
    1,866,739.80x = 2,040,019,684,623.36
  5. Step 5: Solve for x
    x = 2,040,019,684,623.36/1,866,739.80
  6. Step 6: Final answer
    x = 1,092,824.87

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