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Finding the Fourth Proportional to 700.54, 1,049.16 and 412.18

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Solution

The fourth proportional to 700.54, 1,049.16 and 412.18 is: 617.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.54 : 1,049.16 = 412.18 : x
  2. Step 2: Convert to fraction form
    700.54/1,049.16 = 412.18/x
  3. Step 3: Cross multiply
    700.54x = 1,049.16 × 412.18
  4. Step 4: Simplify right side
    700.54x = 432,442.77
  5. Step 5: Solve for x
    x = 432,442.77/700.54
  6. Step 6: Final answer
    x = 617.30

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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.