Home / 1,284,002.20-1,926,003.30-620,450.20

Finding the Fourth Proportional to 1,284,002.20, 1,926,003.30 and 620,450.20

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Solution

The fourth proportional to 1,284,002.20, 1,926,003.30 and 620,450.20 is: 930,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,002.20 : 1,926,003.30 = 620,450.20 : x
  2. Step 2: Convert to fraction form
    1,284,002.20/1,926,003.30 = 620,450.20/x
  3. Step 3: Cross multiply
    1,284,002.20x = 1,926,003.30 × 620,450.20
  4. Step 4: Simplify right side
    1,284,002.20x = 1,194,989,132,685.66
  5. Step 5: Solve for x
    x = 1,194,989,132,685.66/1,284,002.20
  6. Step 6: Final answer
    x = 930,675.30

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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.