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Finding the Fourth Proportional to 656,650.80, 984,976.20 and 376,714.80

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Solution

The fourth proportional to 656,650.80, 984,976.20 and 376,714.80 is: 565,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,650.80 : 984,976.20 = 376,714.80 : x
  2. Step 2: Convert to fraction form
    656,650.80/984,976.20 = 376,714.80/x
  3. Step 3: Cross multiply
    656,650.80x = 984,976.20 × 376,714.80
  4. Step 4: Simplify right side
    656,650.80x = 371,055,112,187.76
  5. Step 5: Solve for x
    x = 371,055,112,187.76/656,650.80
  6. Step 6: Final answer
    x = 565,072.20

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Double scale
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Similar ratio
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1.5x scale

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.