Home / 1,243,221.28-1,715,595.60-699,367.84

Finding the Fourth Proportional to 1,243,221.28, 1,715,595.60 and 699,367.84

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Solution

The fourth proportional to 1,243,221.28, 1,715,595.60 and 699,367.84 is: 965,099.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,221.28 : 1,715,595.60 = 699,367.84 : x
  2. Step 2: Convert to fraction form
    1,243,221.28/1,715,595.60 = 699,367.84/x
  3. Step 3: Cross multiply
    1,243,221.28x = 1,715,595.60 × 699,367.84
  4. Step 4: Simplify right side
    1,243,221.28x = 1,199,832,389,085.50
  5. Step 5: Solve for x
    x = 1,199,832,389,085.50/1,243,221.28
  6. Step 6: Final answer
    x = 965,099.62

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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.