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Finding the Fourth Proportional to 973.70, 1,458.92 and 684.62

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Solution

The fourth proportional to 973.70, 1,458.92 and 684.62 is: 1,025.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.70 : 1,458.92 = 684.62 : x
  2. Step 2: Convert to fraction form
    973.70/1,458.92 = 684.62/x
  3. Step 3: Cross multiply
    973.70x = 1,458.92 × 684.62
  4. Step 4: Simplify right side
    973.70x = 998,805.81
  5. Step 5: Solve for x
    x = 998,805.81/973.70
  6. Step 6: Final answer
    x = 1,025.78

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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.