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Finding the Fourth Proportional to 894.80, 1,341.99 and 483.72

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Solution

The fourth proportional to 894.80, 1,341.99 and 483.72 is: 725.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.80 : 1,341.99 = 483.72 : x
  2. Step 2: Convert to fraction form
    894.80/1,341.99 = 483.72/x
  3. Step 3: Cross multiply
    894.80x = 1,341.99 × 483.72
  4. Step 4: Simplify right side
    894.80x = 649,147.40
  5. Step 5: Solve for x
    x = 649,147.40/894.80
  6. Step 6: Final answer
    x = 725.47

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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.