Home / 1,772,910.72-2,660,853.90-920,505.60

Finding the Fourth Proportional to 1,772,910.72, 2,660,853.90 and 920,505.60

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Solution

The fourth proportional to 1,772,910.72, 2,660,853.90 and 920,505.60 is: 1,381,530.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772,910.72 : 2,660,853.90 = 920,505.60 : x
  2. Step 2: Convert to fraction form
    1,772,910.72/2,660,853.90 = 920,505.60/x
  3. Step 3: Cross multiply
    1,772,910.72x = 2,660,853.90 × 920,505.60
  4. Step 4: Simplify right side
    1,772,910.72x = 2,449,330,915,731.84
  5. Step 5: Solve for x
    x = 2,449,330,915,731.84/1,772,910.72
  6. Step 6: Final answer
    x = 1,381,530.88

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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.