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Finding the Fourth Proportional to 504.69, 756.36 and 454.12

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Solution

The fourth proportional to 504.69, 756.36 and 454.12 is: 680.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.69 : 756.36 = 454.12 : x
  2. Step 2: Convert to fraction form
    504.69/756.36 = 454.12/x
  3. Step 3: Cross multiply
    504.69x = 756.36 × 454.12
  4. Step 4: Simplify right side
    504.69x = 343,478.20
  5. Step 5: Solve for x
    x = 343,478.20/504.69
  6. Step 6: Final answer
    x = 680.57

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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.