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Finding the Fourth Proportional to 890.86, 1,336.33 and 632.02

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Solution

The fourth proportional to 890.86, 1,336.33 and 632.02 is: 948.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    890.86 : 1,336.33 = 632.02 : x
  2. Step 2: Convert to fraction form
    890.86/1,336.33 = 632.02/x
  3. Step 3: Cross multiply
    890.86x = 1,336.33 × 632.02
  4. Step 4: Simplify right side
    890.86x = 844,582.37
  5. Step 5: Solve for x
    x = 844,582.37/890.86
  6. Step 6: Final answer
    x = 948.06

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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.