Home / 812,816.95-1,121,576.29-450,151.27

Finding the Fourth Proportional to 812,816.95, 1,121,576.29 and 450,151.27

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Solution

The fourth proportional to 812,816.95, 1,121,576.29 and 450,151.27 is: 621,147.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,816.95 : 1,121,576.29 = 450,151.27 : x
  2. Step 2: Convert to fraction form
    812,816.95/1,121,576.29 = 450,151.27/x
  3. Step 3: Cross multiply
    812,816.95x = 1,121,576.29 × 450,151.27
  4. Step 4: Simplify right side
    812,816.95x = 504,878,991,345.39
  5. Step 5: Solve for x
    x = 504,878,991,345.39/812,816.95
  6. Step 6: Final answer
    x = 621,147.22

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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.