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Finding the Fourth Proportional to 973.07, 1,458.89 and 663.95

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Solution

The fourth proportional to 973.07, 1,458.89 and 663.95 is: 995.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.07 : 1,458.89 = 663.95 : x
  2. Step 2: Convert to fraction form
    973.07/1,458.89 = 663.95/x
  3. Step 3: Cross multiply
    973.07x = 1,458.89 × 663.95
  4. Step 4: Simplify right side
    973.07x = 968,635.32
  5. Step 5: Solve for x
    x = 968,635.32/973.07
  6. Step 6: Final answer
    x = 995.44

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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.