Home / 1,280,291.22-1,766,820.36-707,344.56

Finding the Fourth Proportional to 1,280,291.22, 1,766,820.36 and 707,344.56

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Solution

The fourth proportional to 1,280,291.22, 1,766,820.36 and 707,344.56 is: 976,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,291.22 : 1,766,820.36 = 707,344.56 : x
  2. Step 2: Convert to fraction form
    1,280,291.22/1,766,820.36 = 707,344.56/x
  3. Step 3: Cross multiply
    1,280,291.22x = 1,766,820.36 × 707,344.56
  4. Step 4: Simplify right side
    1,280,291.22x = 1,249,750,770,143.24
  5. Step 5: Solve for x
    x = 1,249,750,770,143.24/1,280,291.22
  6. Step 6: Final answer
    x = 976,145.70

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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.