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Finding the Fourth Proportional to 1,549.35, 2,324.34 and 509.40

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Solution

The fourth proportional to 1,549.35, 2,324.34 and 509.40 is: 764.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.35 : 2,324.34 = 509.40 : x
  2. Step 2: Convert to fraction form
    1,549.35/2,324.34 = 509.40/x
  3. Step 3: Cross multiply
    1,549.35x = 2,324.34 × 509.40
  4. Step 4: Simplify right side
    1,549.35x = 1,184,018.80
  5. Step 5: Solve for x
    x = 1,184,018.80/1,549.35
  6. Step 6: Final answer
    x = 764.20

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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.