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Finding the Fourth Proportional to 894.35, 1,341.93 and 879.77

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Solution

The fourth proportional to 894.35, 1,341.93 and 879.77 is: 1,320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.35 : 1,341.93 = 879.77 : x
  2. Step 2: Convert to fraction form
    894.35/1,341.93 = 879.77/x
  3. Step 3: Cross multiply
    894.35x = 1,341.93 × 879.77
  4. Step 4: Simplify right side
    894.35x = 1,180,589.76
  5. Step 5: Solve for x
    x = 1,180,589.76/894.35
  6. Step 6: Final answer
    x = 1,320.05

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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.