Home / 412,821.20-619,231.80-202,869.20

Finding the Fourth Proportional to 412,821.20, 619,231.80 and 202,869.20

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Solution

The fourth proportional to 412,821.20, 619,231.80 and 202,869.20 is: 304,303.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,821.20 : 619,231.80 = 202,869.20 : x
  2. Step 2: Convert to fraction form
    412,821.20/619,231.80 = 202,869.20/x
  3. Step 3: Cross multiply
    412,821.20x = 619,231.80 × 202,869.20
  4. Step 4: Simplify right side
    412,821.20x = 125,623,059,880.56
  5. Step 5: Solve for x
    x = 125,623,059,880.56/412,821.20
  6. Step 6: Final answer
    x = 304,303.80

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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.