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Finding the Fourth Proportional to 832.86, 1,245.60 and 625.14

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Solution

The fourth proportional to 832.86, 1,245.60 and 625.14 is: 934.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.86 : 1,245.60 = 625.14 : x
  2. Step 2: Convert to fraction form
    832.86/1,245.60 = 625.14/x
  3. Step 3: Cross multiply
    832.86x = 1,245.60 × 625.14
  4. Step 4: Simplify right side
    832.86x = 778,674.38
  5. Step 5: Solve for x
    x = 778,674.38/832.86
  6. Step 6: Final answer
    x = 934.94

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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.