Home / 1,291,059.73-1,781,657.67-718,099.90

Finding the Fourth Proportional to 1,291,059.73, 1,781,657.67 and 718,099.90

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Solution

The fourth proportional to 1,291,059.73, 1,781,657.67 and 718,099.90 is: 990,975.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,059.73 : 1,781,657.67 = 718,099.90 : x
  2. Step 2: Convert to fraction form
    1,291,059.73/1,781,657.67 = 718,099.90/x
  3. Step 3: Cross multiply
    1,291,059.73x = 1,781,657.67 × 718,099.90
  4. Step 4: Simplify right side
    1,291,059.73x = 1,279,408,192,865.98
  5. Step 5: Solve for x
    x = 1,279,408,192,865.98/1,291,059.73
  6. Step 6: Final answer
    x = 990,975.22

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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.