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Finding the Fourth Proportional to 894.01, 1,341.37 and 407.29

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Solution

The fourth proportional to 894.01, 1,341.37 and 407.29 is: 611.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.01 : 1,341.37 = 407.29 : x
  2. Step 2: Convert to fraction form
    894.01/1,341.37 = 407.29/x
  3. Step 3: Cross multiply
    894.01x = 1,341.37 × 407.29
  4. Step 4: Simplify right side
    894.01x = 546,317.84
  5. Step 5: Solve for x
    x = 546,317.84/894.01
  6. Step 6: Final answer
    x = 611.09

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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.