Home / 828,611.40-1,242,943.80-229,578.36

Finding the Fourth Proportional to 828,611.40, 1,242,943.80 and 229,578.36

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Solution

The fourth proportional to 828,611.40, 1,242,943.80 and 229,578.36 is: 344,374.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,611.40 : 1,242,943.80 = 229,578.36 : x
  2. Step 2: Convert to fraction form
    828,611.40/1,242,943.80 = 229,578.36/x
  3. Step 3: Cross multiply
    828,611.40x = 1,242,943.80 × 229,578.36
  4. Step 4: Simplify right side
    828,611.40x = 285,352,999,176.17
  5. Step 5: Solve for x
    x = 285,352,999,176.17/828,611.40
  6. Step 6: Final answer
    x = 344,374.94

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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.