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Finding the Fourth Proportional to 627,997.40, 942,053.70 and 207,274.20

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Solution

The fourth proportional to 627,997.40, 942,053.70 and 207,274.20 is: 310,930.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,997.40 : 942,053.70 = 207,274.20 : x
  2. Step 2: Convert to fraction form
    627,997.40/942,053.70 = 207,274.20/x
  3. Step 3: Cross multiply
    627,997.40x = 942,053.70 × 207,274.20
  4. Step 4: Simplify right side
    627,997.40x = 195,263,427,024.54
  5. Step 5: Solve for x
    x = 195,263,427,024.54/627,997.40
  6. Step 6: Final answer
    x = 310,930.31

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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.