Home / 856,848.80-1,285,273.20-719,991.20

Finding the Fourth Proportional to 856,848.80, 1,285,273.20 and 719,991.20

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Solution

The fourth proportional to 856,848.80, 1,285,273.20 and 719,991.20 is: 1,079,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,848.80 : 1,285,273.20 = 719,991.20 : x
  2. Step 2: Convert to fraction form
    856,848.80/1,285,273.20 = 719,991.20/x
  3. Step 3: Cross multiply
    856,848.80x = 1,285,273.20 × 719,991.20
  4. Step 4: Simplify right side
    856,848.80x = 925,385,393,595.84
  5. Step 5: Solve for x
    x = 925,385,393,595.84/856,848.80
  6. Step 6: Final answer
    x = 1,079,986.80

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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.