Home / 1,270,998.09-1,906,073.78-512,643.69

Finding the Fourth Proportional to 1,270,998.09, 1,906,073.78 and 512,643.69

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Solution

The fourth proportional to 1,270,998.09, 1,906,073.78 and 512,643.69 is: 768,794.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,998.09 : 1,906,073.78 = 512,643.69 : x
  2. Step 2: Convert to fraction form
    1,270,998.09/1,906,073.78 = 512,643.69/x
  3. Step 3: Cross multiply
    1,270,998.09x = 1,906,073.78 × 512,643.69
  4. Step 4: Simplify right side
    1,270,998.09x = 977,136,693,428.23
  5. Step 5: Solve for x
    x = 977,136,693,428.23/1,270,998.09
  6. Step 6: Final answer
    x = 768,794.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.