Home / 1,333,380.97-1,840,051.74-721,520.38

Finding the Fourth Proportional to 1,333,380.97, 1,840,051.74 and 721,520.38

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Solution

The fourth proportional to 1,333,380.97, 1,840,051.74 and 721,520.38 is: 995,690.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,380.97 : 1,840,051.74 = 721,520.38 : x
  2. Step 2: Convert to fraction form
    1,333,380.97/1,840,051.74 = 721,520.38/x
  3. Step 3: Cross multiply
    1,333,380.97x = 1,840,051.74 × 721,520.38
  4. Step 4: Simplify right side
    1,333,380.97x = 1,327,634,830,664.46
  5. Step 5: Solve for x
    x = 1,327,634,830,664.46/1,333,380.97
  6. Step 6: Final answer
    x = 995,690.55

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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.