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Finding the Fourth Proportional to 563.99, 846.18 and 409.65

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Solution

The fourth proportional to 563.99, 846.18 and 409.65 is: 614.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.99 : 846.18 = 409.65 : x
  2. Step 2: Convert to fraction form
    563.99/846.18 = 409.65/x
  3. Step 3: Cross multiply
    563.99x = 846.18 × 409.65
  4. Step 4: Simplify right side
    563.99x = 346,637.64
  5. Step 5: Solve for x
    x = 346,637.64/563.99
  6. Step 6: Final answer
    x = 614.62

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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.