Home / 808,359.30-1,211,761.35-628,344.90

Finding the Fourth Proportional to 808,359.30, 1,211,761.35 and 628,344.90

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Solution

The fourth proportional to 808,359.30, 1,211,761.35 and 628,344.90 is: 941,912.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,359.30 : 1,211,761.35 = 628,344.90 : x
  2. Step 2: Convert to fraction form
    808,359.30/1,211,761.35 = 628,344.90/x
  3. Step 3: Cross multiply
    808,359.30x = 1,211,761.35 × 628,344.90
  4. Step 4: Simplify right side
    808,359.30x = 761,404,064,289.62
  5. Step 5: Solve for x
    x = 761,404,064,289.62/808,359.30
  6. Step 6: Final answer
    x = 941,912.91

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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.