Home / 1,375,478.20-2,063,217.30-378,206.20

Finding the Fourth Proportional to 1,375,478.20, 2,063,217.30 and 378,206.20

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Solution

The fourth proportional to 1,375,478.20, 2,063,217.30 and 378,206.20 is: 567,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,478.20 : 2,063,217.30 = 378,206.20 : x
  2. Step 2: Convert to fraction form
    1,375,478.20/2,063,217.30 = 378,206.20/x
  3. Step 3: Cross multiply
    1,375,478.20x = 2,063,217.30 × 378,206.20
  4. Step 4: Simplify right side
    1,375,478.20x = 780,321,574,807.26
  5. Step 5: Solve for x
    x = 780,321,574,807.26/1,375,478.20
  6. Step 6: Final answer
    x = 567,309.30

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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.