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Finding the Fourth Proportional to 973.38, 1,459.44 and 511.26

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Solution

The fourth proportional to 973.38, 1,459.44 and 511.26 is: 766.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.38 : 1,459.44 = 511.26 : x
  2. Step 2: Convert to fraction form
    973.38/1,459.44 = 511.26/x
  3. Step 3: Cross multiply
    973.38x = 1,459.44 × 511.26
  4. Step 4: Simplify right side
    973.38x = 746,153.29
  5. Step 5: Solve for x
    x = 746,153.29/973.38
  6. Step 6: Final answer
    x = 766.56

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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.