Home / 818,185.73-1,225,605.49-666,921.88

Finding the Fourth Proportional to 818,185.73, 1,225,605.49 and 666,921.88

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Solution

The fourth proportional to 818,185.73, 1,225,605.49 and 666,921.88 is: 999,019.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,185.73 : 1,225,605.49 = 666,921.88 : x
  2. Step 2: Convert to fraction form
    818,185.73/1,225,605.49 = 666,921.88/x
  3. Step 3: Cross multiply
    818,185.73x = 1,225,605.49 × 666,921.88
  4. Step 4: Simplify right side
    818,185.73x = 817,383,117,529.12
  5. Step 5: Solve for x
    x = 817,383,117,529.12/818,185.73
  6. Step 6: Final answer
    x = 999,019.03

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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.