Home / 1,491,243.93-2,057,916.51-812,180.43

Finding the Fourth Proportional to 1,491,243.93, 2,057,916.51 and 812,180.43

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Solution

The fourth proportional to 1,491,243.93, 2,057,916.51 and 812,180.43 is: 1,120,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,243.93 : 2,057,916.51 = 812,180.43 : x
  2. Step 2: Convert to fraction form
    1,491,243.93/2,057,916.51 = 812,180.43/x
  3. Step 3: Cross multiply
    1,491,243.93x = 2,057,916.51 × 812,180.43
  4. Step 4: Simplify right side
    1,491,243.93x = 1,671,399,515,995.90
  5. Step 5: Solve for x
    x = 1,671,399,515,995.90/1,491,243.93
  6. Step 6: Final answer
    x = 1,120,808.93

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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.