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Finding the Fourth Proportional to 504.26, 693.47 and 419.47

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Solution

The fourth proportional to 504.26, 693.47 and 419.47 is: 576.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.26 : 693.47 = 419.47 : x
  2. Step 2: Convert to fraction form
    504.26/693.47 = 419.47/x
  3. Step 3: Cross multiply
    504.26x = 693.47 × 419.47
  4. Step 4: Simplify right side
    504.26x = 290,889.86
  5. Step 5: Solve for x
    x = 290,889.86/504.26
  6. Step 6: Final answer
    x = 576.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.