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Finding the Fourth Proportional to 444.83, 663.95 and 417.47

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Solution

The fourth proportional to 444.83, 663.95 and 417.47 is: 623.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.83 : 663.95 = 417.47 : x
  2. Step 2: Convert to fraction form
    444.83/663.95 = 417.47/x
  3. Step 3: Cross multiply
    444.83x = 663.95 × 417.47
  4. Step 4: Simplify right side
    444.83x = 277,173.80
  5. Step 5: Solve for x
    x = 277,173.80/444.83
  6. Step 6: Final answer
    x = 623.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.