Home / 1,136,431.47-1,568,308.56-620,218.68

Finding the Fourth Proportional to 1,136,431.47, 1,568,308.56 and 620,218.68

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Solution

The fourth proportional to 1,136,431.47, 1,568,308.56 and 620,218.68 is: 855,919.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,431.47 : 1,568,308.56 = 620,218.68 : x
  2. Step 2: Convert to fraction form
    1,136,431.47/1,568,308.56 = 620,218.68/x
  3. Step 3: Cross multiply
    1,136,431.47x = 1,568,308.56 × 620,218.68
  4. Step 4: Simplify right side
    1,136,431.47x = 972,694,264,915.90
  5. Step 5: Solve for x
    x = 972,694,264,915.90/1,136,431.47
  6. Step 6: Final answer
    x = 855,919.86

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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.