Home / 919,687.04-1,379,738.15-280,047.96

Finding the Fourth Proportional to 919,687.04, 1,379,738.15 and 280,047.96

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Solution

The fourth proportional to 919,687.04, 1,379,738.15 and 280,047.96 is: 420,135.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,687.04 : 1,379,738.15 = 280,047.96 : x
  2. Step 2: Convert to fraction form
    919,687.04/1,379,738.15 = 280,047.96/x
  3. Step 3: Cross multiply
    919,687.04x = 1,379,738.15 × 280,047.96
  4. Step 4: Simplify right side
    919,687.04x = 386,392,852,841.43
  5. Step 5: Solve for x
    x = 386,392,852,841.43/919,687.04
  6. Step 6: Final answer
    x = 420,135.15

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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.