Home / 839,927.20-1,259,890.80-341,648.80

Finding the Fourth Proportional to 839,927.20, 1,259,890.80 and 341,648.80

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Solution

The fourth proportional to 839,927.20, 1,259,890.80 and 341,648.80 is: 512,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,927.20 : 1,259,890.80 = 341,648.80 : x
  2. Step 2: Convert to fraction form
    839,927.20/1,259,890.80 = 341,648.80/x
  3. Step 3: Cross multiply
    839,927.20x = 1,259,890.80 × 341,648.80
  4. Step 4: Simplify right side
    839,927.20x = 430,440,179,951.04
  5. Step 5: Solve for x
    x = 430,440,179,951.04/839,927.20
  6. Step 6: Final answer
    x = 512,473.20

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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.