Home / 1,318,862.80-1,978,327.68-359,326.11

Finding the Fourth Proportional to 1,318,862.80, 1,978,327.68 and 359,326.11

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Solution

The fourth proportional to 1,318,862.80, 1,978,327.68 and 359,326.11 is: 538,998.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,862.80 : 1,978,327.68 = 359,326.11 : x
  2. Step 2: Convert to fraction form
    1,318,862.80/1,978,327.68 = 359,326.11/x
  3. Step 3: Cross multiply
    1,318,862.80x = 1,978,327.68 × 359,326.11
  4. Step 4: Simplify right side
    1,318,862.80x = 710,864,789,559.73
  5. Step 5: Solve for x
    x = 710,864,789,559.73/1,318,862.80
  6. Step 6: Final answer
    x = 538,998.29

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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.