Home / 1,333,436.42-1,840,128.18-721,575.78

Finding the Fourth Proportional to 1,333,436.42, 1,840,128.18 and 721,575.78

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Solution

The fourth proportional to 1,333,436.42, 1,840,128.18 and 721,575.78 is: 995,766.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,436.42 : 1,840,128.18 = 721,575.78 : x
  2. Step 2: Convert to fraction form
    1,333,436.42/1,840,128.18 = 721,575.78/x
  3. Step 3: Cross multiply
    1,333,436.42x = 1,840,128.18 × 721,575.78
  4. Step 4: Simplify right side
    1,333,436.42x = 1,327,791,926,783.48
  5. Step 5: Solve for x
    x = 1,327,791,926,783.48/1,333,436.42
  6. Step 6: Final answer
    x = 995,766.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.