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Finding the Fourth Proportional to 606.30, 847.20 and 606.30

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Solution

The fourth proportional to 606.30, 847.20 and 606.30 is: 847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.30 : 847.20 = 606.30 : x
  2. Step 2: Convert to fraction form
    606.30/847.20 = 606.30/x
  3. Step 3: Cross multiply
    606.30x = 847.20 × 606.30
  4. Step 4: Simplify right side
    606.30x = 513,657.36
  5. Step 5: Solve for x
    x = 513,657.36/606.30
  6. Step 6: Final answer
    x = 847.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.