Home / 1,480,573.40-2,221,896.90-639,728.60

Finding the Fourth Proportional to 1,480,573.40, 2,221,896.90 and 639,728.60

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Solution

The fourth proportional to 1,480,573.40, 2,221,896.90 and 639,728.60 is: 960,040.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480,573.40 : 2,221,896.90 = 639,728.60 : x
  2. Step 2: Convert to fraction form
    1,480,573.40/2,221,896.90 = 639,728.60/x
  3. Step 3: Cross multiply
    1,480,573.40x = 2,221,896.90 × 639,728.60
  4. Step 4: Simplify right side
    1,480,573.40x = 1,421,410,993,181.34
  5. Step 5: Solve for x
    x = 1,421,410,993,181.34/1,480,573.40
  6. Step 6: Final answer
    x = 960,040.88

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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.