Home / 839,242.20-1,259,388.18-340,606.20

Finding the Fourth Proportional to 839,242.20, 1,259,388.18 and 340,606.20

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Solution

The fourth proportional to 839,242.20, 1,259,388.18 and 340,606.20 is: 511,122.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,242.20 : 1,259,388.18 = 340,606.20 : x
  2. Step 2: Convert to fraction form
    839,242.20/1,259,388.18 = 340,606.20/x
  3. Step 3: Cross multiply
    839,242.20x = 1,259,388.18 × 340,606.20
  4. Step 4: Simplify right side
    839,242.20x = 428,955,422,314.72
  5. Step 5: Solve for x
    x = 428,955,422,314.72/839,242.20
  6. Step 6: Final answer
    x = 511,122.32

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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.