Home / 1,200,846.87-1,656,897.39-717,317.37

Finding the Fourth Proportional to 1,200,846.87, 1,656,897.39 and 717,317.37

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Solution

The fourth proportional to 1,200,846.87, 1,656,897.39 and 717,317.37 is: 989,735.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,846.87 : 1,656,897.39 = 717,317.37 : x
  2. Step 2: Convert to fraction form
    1,200,846.87/1,656,897.39 = 717,317.37/x
  3. Step 3: Cross multiply
    1,200,846.87x = 1,656,897.39 × 717,317.37
  4. Step 4: Simplify right side
    1,200,846.87x = 1,188,521,278,154.66
  5. Step 5: Solve for x
    x = 1,188,521,278,154.66/1,200,846.87
  6. Step 6: Final answer
    x = 989,735.92

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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.