Home / 1,234,743.40-1,851,942.30-393,380.20

Finding the Fourth Proportional to 1,234,743.40, 1,851,942.30 and 393,380.20

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Solution

The fourth proportional to 1,234,743.40, 1,851,942.30 and 393,380.20 is: 590,015.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234,743.40 : 1,851,942.30 = 393,380.20 : x
  2. Step 2: Convert to fraction form
    1,234,743.40/1,851,942.30 = 393,380.20/x
  3. Step 3: Cross multiply
    1,234,743.40x = 1,851,942.30 × 393,380.20
  4. Step 4: Simplify right side
    1,234,743.40x = 728,517,432,362.46
  5. Step 5: Solve for x
    x = 728,517,432,362.46/1,234,743.40
  6. Step 6: Final answer
    x = 590,015.25

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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.