Home / 839,491.20-1,259,236.80-248,515.20

Finding the Fourth Proportional to 839,491.20, 1,259,236.80 and 248,515.20

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Solution

The fourth proportional to 839,491.20, 1,259,236.80 and 248,515.20 is: 372,772.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,491.20 : 1,259,236.80 = 248,515.20 : x
  2. Step 2: Convert to fraction form
    839,491.20/1,259,236.80 = 248,515.20/x
  3. Step 3: Cross multiply
    839,491.20x = 1,259,236.80 × 248,515.20
  4. Step 4: Simplify right side
    839,491.20x = 312,939,485,199.36
  5. Step 5: Solve for x
    x = 312,939,485,199.36/839,491.20
  6. Step 6: Final answer
    x = 372,772.80

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Double scale
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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.