Home / 1,136,728.78-1,568,685.81-627,431.26

Finding the Fourth Proportional to 1,136,728.78, 1,568,685.81 and 627,431.26

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Solution

The fourth proportional to 1,136,728.78, 1,568,685.81 and 627,431.26 is: 865,855.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,728.78 : 1,568,685.81 = 627,431.26 : x
  2. Step 2: Convert to fraction form
    1,136,728.78/1,568,685.81 = 627,431.26/x
  3. Step 3: Cross multiply
    1,136,728.78x = 1,568,685.81 × 627,431.26
  4. Step 4: Simplify right side
    1,136,728.78x = 984,242,514,312.42
  5. Step 5: Solve for x
    x = 984,242,514,312.42/1,136,728.78
  6. Step 6: Final answer
    x = 865,855.19

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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.