Home / 827,119.80-1,240,679.70-792,127.80

Finding the Fourth Proportional to 827,119.80, 1,240,679.70 and 792,127.80

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Solution

The fourth proportional to 827,119.80, 1,240,679.70 and 792,127.80 is: 1,188,191.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,119.80 : 1,240,679.70 = 792,127.80 : x
  2. Step 2: Convert to fraction form
    827,119.80/1,240,679.70 = 792,127.80/x
  3. Step 3: Cross multiply
    827,119.80x = 1,240,679.70 × 792,127.80
  4. Step 4: Simplify right side
    827,119.80x = 982,776,881,265.66
  5. Step 5: Solve for x
    x = 982,776,881,265.66/827,119.80
  6. Step 6: Final answer
    x = 1,188,191.70

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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.