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Finding the Fourth Proportional to 473.86, 710.07 and 424.78

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Solution

The fourth proportional to 473.86, 710.07 and 424.78 is: 636.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.86 : 710.07 = 424.78 : x
  2. Step 2: Convert to fraction form
    473.86/710.07 = 424.78/x
  3. Step 3: Cross multiply
    473.86x = 710.07 × 424.78
  4. Step 4: Simplify right side
    473.86x = 301,623.53
  5. Step 5: Solve for x
    x = 301,623.53/473.86
  6. Step 6: Final answer
    x = 636.52

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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.