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Finding the Fourth Proportional to 894.18, 1,341.78 and 483.31

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Solution

The fourth proportional to 894.18, 1,341.78 and 483.31 is: 725.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.18 : 1,341.78 = 483.31 : x
  2. Step 2: Convert to fraction form
    894.18/1,341.78 = 483.31/x
  3. Step 3: Cross multiply
    894.18x = 1,341.78 × 483.31
  4. Step 4: Simplify right side
    894.18x = 648,495.69
  5. Step 5: Solve for x
    x = 648,495.69/894.18
  6. Step 6: Final answer
    x = 725.24

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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.