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Finding the Fourth Proportional to 906.52, 1,358.80 and 444.62

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Solution

The fourth proportional to 906.52, 1,358.80 and 444.62 is: 666.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    906.52 : 1,358.80 = 444.62 : x
  2. Step 2: Convert to fraction form
    906.52/1,358.80 = 444.62/x
  3. Step 3: Cross multiply
    906.52x = 1,358.80 × 444.62
  4. Step 4: Simplify right side
    906.52x = 604,149.66
  5. Step 5: Solve for x
    x = 604,149.66/906.52
  6. Step 6: Final answer
    x = 666.45

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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.