Home / 889,628.15-1,227,692.72-481,729.98

Finding the Fourth Proportional to 889,628.15, 1,227,692.72 and 481,729.98

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Solution

The fourth proportional to 889,628.15, 1,227,692.72 and 481,729.98 is: 664,790.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,628.15 : 1,227,692.72 = 481,729.98 : x
  2. Step 2: Convert to fraction form
    889,628.15/1,227,692.72 = 481,729.98/x
  3. Step 3: Cross multiply
    889,628.15x = 1,227,692.72 × 481,729.98
  4. Step 4: Simplify right side
    889,628.15x = 591,416,392,550.19
  5. Step 5: Solve for x
    x = 591,416,392,550.19/889,628.15
  6. Step 6: Final answer
    x = 664,790.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.