Home / 1,092,079.20-1,638,118.80-619,687.20

Finding the Fourth Proportional to 1,092,079.20, 1,638,118.80 and 619,687.20

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Solution

The fourth proportional to 1,092,079.20, 1,638,118.80 and 619,687.20 is: 929,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,079.20 : 1,638,118.80 = 619,687.20 : x
  2. Step 2: Convert to fraction form
    1,092,079.20/1,638,118.80 = 619,687.20/x
  3. Step 3: Cross multiply
    1,092,079.20x = 1,638,118.80 × 619,687.20
  4. Step 4: Simplify right side
    1,092,079.20x = 1,015,121,252,439.36
  5. Step 5: Solve for x
    x = 1,015,121,252,439.36/1,092,079.20
  6. Step 6: Final answer
    x = 929,530.80

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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.