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Finding the Fourth Proportional to 651.70, 979.80 and 562.60

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Solution

The fourth proportional to 651.70, 979.80 and 562.60 is: 845.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.70 : 979.80 = 562.60 : x
  2. Step 2: Convert to fraction form
    651.70/979.80 = 562.60/x
  3. Step 3: Cross multiply
    651.70x = 979.80 × 562.60
  4. Step 4: Simplify right side
    651.70x = 551,235.48
  5. Step 5: Solve for x
    x = 551,235.48/651.70
  6. Step 6: Final answer
    x = 845.84

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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.