Home / 1,223,520.93-1,687,778.78-1,136,923.29

Finding the Fourth Proportional to 1,223,520.93, 1,687,778.78 and 1,136,923.29

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Solution

The fourth proportional to 1,223,520.93, 1,687,778.78 and 1,136,923.29 is: 1,568,322.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,520.93 : 1,687,778.78 = 1,136,923.29 : x
  2. Step 2: Convert to fraction form
    1,223,520.93/1,687,778.78 = 1,136,923.29/x
  3. Step 3: Cross multiply
    1,223,520.93x = 1,687,778.78 × 1,136,923.29
  4. Step 4: Simplify right side
    1,223,520.93x = 1,918,874,997,665.17
  5. Step 5: Solve for x
    x = 1,918,874,997,665.17/1,223,520.93
  6. Step 6: Final answer
    x = 1,568,322.17

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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.