Home / 672,064.20-1,008,096.30-388,240.20

Finding the Fourth Proportional to 672,064.20, 1,008,096.30 and 388,240.20

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Solution

The fourth proportional to 672,064.20, 1,008,096.30 and 388,240.20 is: 582,360.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,064.20 : 1,008,096.30 = 388,240.20 : x
  2. Step 2: Convert to fraction form
    672,064.20/1,008,096.30 = 388,240.20/x
  3. Step 3: Cross multiply
    672,064.20x = 1,008,096.30 × 388,240.20
  4. Step 4: Simplify right side
    672,064.20x = 391,383,509,131.26
  5. Step 5: Solve for x
    x = 391,383,509,131.26/672,064.20
  6. Step 6: Final answer
    x = 582,360.30

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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.