Home / 740,422.20-1,109,793.69-340,236.05

Finding the Fourth Proportional to 740,422.20, 1,109,793.69 and 340,236.05

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Solution

The fourth proportional to 740,422.20, 1,109,793.69 and 340,236.05 is: 509,968.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,422.20 : 1,109,793.69 = 340,236.05 : x
  2. Step 2: Convert to fraction form
    740,422.20/1,109,793.69 = 340,236.05/x
  3. Step 3: Cross multiply
    740,422.20x = 1,109,793.69 × 340,236.05
  4. Step 4: Simplify right side
    740,422.20x = 377,591,824,175.01
  5. Step 5: Solve for x
    x = 377,591,824,175.01/740,422.20
  6. Step 6: Final answer
    x = 509,968.27

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Double scale
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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.