Home / 717,728.80-1,076,593.20-219,092.80

Finding the Fourth Proportional to 717,728.80, 1,076,593.20 and 219,092.80

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Solution

The fourth proportional to 717,728.80, 1,076,593.20 and 219,092.80 is: 328,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,728.80 : 1,076,593.20 = 219,092.80 : x
  2. Step 2: Convert to fraction form
    717,728.80/1,076,593.20 = 219,092.80/x
  3. Step 3: Cross multiply
    717,728.80x = 1,076,593.20 × 219,092.80
  4. Step 4: Simplify right side
    717,728.80x = 235,873,818,648.96
  5. Step 5: Solve for x
    x = 235,873,818,648.96/717,728.80
  6. Step 6: Final answer
    x = 328,639.20

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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.