Home / 2,660,745.40-3,991,118.10-977,630.20

Finding the Fourth Proportional to 2,660,745.40, 3,991,118.10 and 977,630.20

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Solution

The fourth proportional to 2,660,745.40, 3,991,118.10 and 977,630.20 is: 1,466,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,745.40 : 3,991,118.10 = 977,630.20 : x
  2. Step 2: Convert to fraction form
    2,660,745.40/3,991,118.10 = 977,630.20/x
  3. Step 3: Cross multiply
    2,660,745.40x = 3,991,118.10 × 977,630.20
  4. Step 4: Simplify right side
    2,660,745.40x = 3,901,837,586,326.62
  5. Step 5: Solve for x
    x = 3,901,837,586,326.62/2,660,745.40
  6. Step 6: Final answer
    x = 1,466,445.30

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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.