Home / 803,467.20-1,205,200.80-329,908.80

Finding the Fourth Proportional to 803,467.20, 1,205,200.80 and 329,908.80

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Solution

The fourth proportional to 803,467.20, 1,205,200.80 and 329,908.80 is: 494,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,467.20 : 1,205,200.80 = 329,908.80 : x
  2. Step 2: Convert to fraction form
    803,467.20/1,205,200.80 = 329,908.80/x
  3. Step 3: Cross multiply
    803,467.20x = 1,205,200.80 × 329,908.80
  4. Step 4: Simplify right side
    803,467.20x = 397,606,349,687.04
  5. Step 5: Solve for x
    x = 397,606,349,687.04/803,467.20
  6. Step 6: Final answer
    x = 494,863.20

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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.