Home / 1,333,438.36-1,840,144.90-721,591.12

Finding the Fourth Proportional to 1,333,438.36, 1,840,144.90 and 721,591.12

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Solution

The fourth proportional to 1,333,438.36, 1,840,144.90 and 721,591.12 is: 995,795.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,438.36 : 1,840,144.90 = 721,591.12 : x
  2. Step 2: Convert to fraction form
    1,333,438.36/1,840,144.90 = 721,591.12/x
  3. Step 3: Cross multiply
    1,333,438.36x = 1,840,144.90 × 721,591.12
  4. Step 4: Simplify right side
    1,333,438.36x = 1,327,832,219,353.29
  5. Step 5: Solve for x
    x = 1,327,832,219,353.29/1,333,438.36
  6. Step 6: Final answer
    x = 995,795.73

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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.