Home / 717,458.30-1,076,121.84-218,822.30

Finding the Fourth Proportional to 717,458.30, 1,076,121.84 and 218,822.30

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Solution

The fourth proportional to 717,458.30, 1,076,121.84 and 218,822.30 is: 328,213.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,458.30 : 1,076,121.84 = 218,822.30 : x
  2. Step 2: Convert to fraction form
    717,458.30/1,076,121.84 = 218,822.30/x
  3. Step 3: Cross multiply
    717,458.30x = 1,076,121.84 × 218,822.30
  4. Step 4: Simplify right side
    717,458.30x = 235,479,456,109.03
  5. Step 5: Solve for x
    x = 235,479,456,109.03/717,458.30
  6. Step 6: Final answer
    x = 328,213.44

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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.