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Finding the Fourth Proportional to 1,062.60, 1,466.36 and 669.62

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Solution

The fourth proportional to 1,062.60, 1,466.36 and 669.62 is: 924.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.60 : 1,466.36 = 669.62 : x
  2. Step 2: Convert to fraction form
    1,062.60/1,466.36 = 669.62/x
  3. Step 3: Cross multiply
    1,062.60x = 1,466.36 × 669.62
  4. Step 4: Simplify right side
    1,062.60x = 981,903.98
  5. Step 5: Solve for x
    x = 981,903.98/1,062.60
  6. Step 6: Final answer
    x = 924.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.