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Finding the Fourth Proportional to 618.73, 849.03 and 563.03

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Solution

The fourth proportional to 618.73, 849.03 and 563.03 is: 772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.73 : 849.03 = 563.03 : x
  2. Step 2: Convert to fraction form
    618.73/849.03 = 563.03/x
  3. Step 3: Cross multiply
    618.73x = 849.03 × 563.03
  4. Step 4: Simplify right side
    618.73x = 478,029.36
  5. Step 5: Solve for x
    x = 478,029.36/618.73
  6. Step 6: Final answer
    x = 772.60

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Find fourth proportional to 309.37, 424.52 and 281.52
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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.