Home / 1,219,806.72-1,683,421.92-736,489.44

Finding the Fourth Proportional to 1,219,806.72, 1,683,421.92 and 736,489.44

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Solution

The fourth proportional to 1,219,806.72, 1,683,421.92 and 736,489.44 is: 1,016,408.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,806.72 : 1,683,421.92 = 736,489.44 : x
  2. Step 2: Convert to fraction form
    1,219,806.72/1,683,421.92 = 736,489.44/x
  3. Step 3: Cross multiply
    1,219,806.72x = 1,683,421.92 × 736,489.44
  4. Step 4: Simplify right side
    1,219,806.72x = 1,239,822,467,144.52
  5. Step 5: Solve for x
    x = 1,239,822,467,144.52/1,219,806.72
  6. Step 6: Final answer
    x = 1,016,408.95

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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.