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Finding the Fourth Proportional to 649.05, 894.62 and 508.92

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Solution

The fourth proportional to 649.05, 894.62 and 508.92 is: 701.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.05 : 894.62 = 508.92 : x
  2. Step 2: Convert to fraction form
    649.05/894.62 = 508.92/x
  3. Step 3: Cross multiply
    649.05x = 894.62 × 508.92
  4. Step 4: Simplify right side
    649.05x = 455,287.47
  5. Step 5: Solve for x
    x = 455,287.47/649.05
  6. Step 6: Final answer
    x = 701.47

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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.