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Finding the Fourth Proportional to 683.79, 942.99 and 460.23

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Solution

The fourth proportional to 683.79, 942.99 and 460.23 is: 634.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.79 : 942.99 = 460.23 : x
  2. Step 2: Convert to fraction form
    683.79/942.99 = 460.23/x
  3. Step 3: Cross multiply
    683.79x = 942.99 × 460.23
  4. Step 4: Simplify right side
    683.79x = 433,992.29
  5. Step 5: Solve for x
    x = 433,992.29/683.79
  6. Step 6: Final answer
    x = 634.69

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1.5x scale

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.