Home / 1,320,751.44-1,822,637.70-717,139.44

Finding the Fourth Proportional to 1,320,751.44, 1,822,637.70 and 717,139.44

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Solution

The fourth proportional to 1,320,751.44, 1,822,637.70 and 717,139.44 is: 989,652.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,751.44 : 1,822,637.70 = 717,139.44 : x
  2. Step 2: Convert to fraction form
    1,320,751.44/1,822,637.70 = 717,139.44/x
  3. Step 3: Cross multiply
    1,320,751.44x = 1,822,637.70 × 717,139.44
  4. Step 4: Simplify right side
    1,320,751.44x = 1,307,085,379,500.89
  5. Step 5: Solve for x
    x = 1,307,085,379,500.89/1,320,751.44
  6. Step 6: Final answer
    x = 989,652.81

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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.