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Finding the Fourth Proportional to 699.11, 1,047.53 and 370.04

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Solution

The fourth proportional to 699.11, 1,047.53 and 370.04 is: 554.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.11 : 1,047.53 = 370.04 : x
  2. Step 2: Convert to fraction form
    699.11/1,047.53 = 370.04/x
  3. Step 3: Cross multiply
    699.11x = 1,047.53 × 370.04
  4. Step 4: Simplify right side
    699.11x = 387,620.91
  5. Step 5: Solve for x
    x = 387,620.91/699.11
  6. Step 6: Final answer
    x = 554.45

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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.