Home / 1,333,469.79-1,840,188.20-721,622.48

Finding the Fourth Proportional to 1,333,469.79, 1,840,188.20 and 721,622.48

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Solution

The fourth proportional to 1,333,469.79, 1,840,188.20 and 721,622.48 is: 995,838.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,469.79 : 1,840,188.20 = 721,622.48 : x
  2. Step 2: Convert to fraction form
    1,333,469.79/1,840,188.20 = 721,622.48/x
  3. Step 3: Cross multiply
    1,333,469.79x = 1,840,188.20 × 721,622.48
  4. Step 4: Simplify right side
    1,333,469.79x = 1,327,921,159,741.68
  5. Step 5: Solve for x
    x = 1,327,921,159,741.68/1,333,469.79
  6. Step 6: Final answer
    x = 995,838.95

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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.