Home / 777,999.20-1,166,998.80-187,023.20

Finding the Fourth Proportional to 777,999.20, 1,166,998.80 and 187,023.20

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Solution

The fourth proportional to 777,999.20, 1,166,998.80 and 187,023.20 is: 280,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,999.20 : 1,166,998.80 = 187,023.20 : x
  2. Step 2: Convert to fraction form
    777,999.20/1,166,998.80 = 187,023.20/x
  3. Step 3: Cross multiply
    777,999.20x = 1,166,998.80 × 187,023.20
  4. Step 4: Simplify right side
    777,999.20x = 218,255,849,972.16
  5. Step 5: Solve for x
    x = 218,255,849,972.16/777,999.20
  6. Step 6: Final answer
    x = 280,534.80

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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.