Home / 1,294,507.68-1,786,481.10-721,551.96

Finding the Fourth Proportional to 1,294,507.68, 1,786,481.10 and 721,551.96

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Solution

The fourth proportional to 1,294,507.68, 1,786,481.10 and 721,551.96 is: 995,775.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,507.68 : 1,786,481.10 = 721,551.96 : x
  2. Step 2: Convert to fraction form
    1,294,507.68/1,786,481.10 = 721,551.96/x
  3. Step 3: Cross multiply
    1,294,507.68x = 1,786,481.10 × 721,551.96
  4. Step 4: Simplify right side
    1,294,507.68x = 1,289,038,939,207.96
  5. Step 5: Solve for x
    x = 1,289,038,939,207.96/1,294,507.68
  6. Step 6: Final answer
    x = 995,775.43

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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.