Home / 1,333,515.86-1,840,237.53-721,655.09

Finding the Fourth Proportional to 1,333,515.86, 1,840,237.53 and 721,655.09

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Solution

The fourth proportional to 1,333,515.86, 1,840,237.53 and 721,655.09 is: 995,876.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,515.86 : 1,840,237.53 = 721,655.09 : x
  2. Step 2: Convert to fraction form
    1,333,515.86/1,840,237.53 = 721,655.09/x
  3. Step 3: Cross multiply
    1,333,515.86x = 1,840,237.53 × 721,655.09
  4. Step 4: Simplify right side
    1,333,515.86x = 1,328,016,780,333.53
  5. Step 5: Solve for x
    x = 1,328,016,780,333.53/1,333,515.86
  6. Step 6: Final answer
    x = 995,876.25

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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.