Home / 1,333,228.86-1,839,842.73-721,368.18

Finding the Fourth Proportional to 1,333,228.86, 1,839,842.73 and 721,368.18

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Solution

The fourth proportional to 1,333,228.86, 1,839,842.73 and 721,368.18 is: 995,481.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,228.86 : 1,839,842.73 = 721,368.18 : x
  2. Step 2: Convert to fraction form
    1,333,228.86/1,839,842.73 = 721,368.18/x
  3. Step 3: Cross multiply
    1,333,228.86x = 1,839,842.73 × 721,368.18
  4. Step 4: Simplify right side
    1,333,228.86x = 1,327,204,001,626.33
  5. Step 5: Solve for x
    x = 1,327,204,001,626.33/1,333,228.86
  6. Step 6: Final answer
    x = 995,481.00

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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.