Home / 2,660,755.40-3,991,133.10-977,640.20

Finding the Fourth Proportional to 2,660,755.40, 3,991,133.10 and 977,640.20

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Solution

The fourth proportional to 2,660,755.40, 3,991,133.10 and 977,640.20 is: 1,466,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,755.40 : 3,991,133.10 = 977,640.20 : x
  2. Step 2: Convert to fraction form
    2,660,755.40/3,991,133.10 = 977,640.20/x
  3. Step 3: Cross multiply
    2,660,755.40x = 3,991,133.10 × 977,640.20
  4. Step 4: Simplify right side
    2,660,755.40x = 3,901,892,162,110.62
  5. Step 5: Solve for x
    x = 3,901,892,162,110.62/2,660,755.40
  6. Step 6: Final answer
    x = 1,466,460.30

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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.