Home / 862,813.80-1,293,127.20-329,623.20

Finding the Fourth Proportional to 862,813.80, 1,293,127.20 and 329,623.20

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Solution

The fourth proportional to 862,813.80, 1,293,127.20 and 329,623.20 is: 494,017.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,813.80 : 1,293,127.20 = 329,623.20 : x
  2. Step 2: Convert to fraction form
    862,813.80/1,293,127.20 = 329,623.20/x
  3. Step 3: Cross multiply
    862,813.80x = 1,293,127.20 × 329,623.20
  4. Step 4: Simplify right side
    862,813.80x = 426,244,725,671.04
  5. Step 5: Solve for x
    x = 426,244,725,671.04/862,813.80
  6. Step 6: Final answer
    x = 494,017.05

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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.