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Finding the Fourth Proportional to 627,007.80, 940,511.70 and 617,676.60

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Solution

The fourth proportional to 627,007.80, 940,511.70 and 617,676.60 is: 926,514.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,007.80 : 940,511.70 = 617,676.60 : x
  2. Step 2: Convert to fraction form
    627,007.80/940,511.70 = 617,676.60/x
  3. Step 3: Cross multiply
    627,007.80x = 940,511.70 × 617,676.60
  4. Step 4: Simplify right side
    627,007.80x = 580,932,069,116.22
  5. Step 5: Solve for x
    x = 580,932,069,116.22/627,007.80
  6. Step 6: Final answer
    x = 926,514.90

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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.