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Finding the Fourth Proportional to 563.76, 846.26 and 409.77

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Solution

The fourth proportional to 563.76, 846.26 and 409.77 is: 615.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.76 : 846.26 = 409.77 : x
  2. Step 2: Convert to fraction form
    563.76/846.26 = 409.77/x
  3. Step 3: Cross multiply
    563.76x = 846.26 × 409.77
  4. Step 4: Simplify right side
    563.76x = 346,771.96
  5. Step 5: Solve for x
    x = 346,771.96/563.76
  6. Step 6: Final answer
    x = 615.11

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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.