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Finding the Fourth Proportional to 450.99, 672.95 and 435.33

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Solution

The fourth proportional to 450.99, 672.95 and 435.33 is: 649.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.99 : 672.95 = 435.33 : x
  2. Step 2: Convert to fraction form
    450.99/672.95 = 435.33/x
  3. Step 3: Cross multiply
    450.99x = 672.95 × 435.33
  4. Step 4: Simplify right side
    450.99x = 292,956.41
  5. Step 5: Solve for x
    x = 292,956.41/450.99
  6. Step 6: Final answer
    x = 649.59

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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.