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Finding the Fourth Proportional to 627,752.20, 941,628.30 and 207,005.80

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Solution

The fourth proportional to 627,752.20, 941,628.30 and 207,005.80 is: 310,508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,752.20 : 941,628.30 = 207,005.80 : x
  2. Step 2: Convert to fraction form
    627,752.20/941,628.30 = 207,005.80/x
  3. Step 3: Cross multiply
    627,752.20x = 941,628.30 × 207,005.80
  4. Step 4: Simplify right side
    627,752.20x = 194,922,519,544.14
  5. Step 5: Solve for x
    x = 194,922,519,544.14/627,752.20
  6. Step 6: Final answer
    x = 310,508.70

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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.