Home / 1,201,750.80-1,811,061.75-1,081,927.50

Finding the Fourth Proportional to 1,201,750.80, 1,811,061.75 and 1,081,927.50

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Solution

The fourth proportional to 1,201,750.80, 1,811,061.75 and 1,081,927.50 is: 1,630,485.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,750.80 : 1,811,061.75 = 1,081,927.50 : x
  2. Step 2: Convert to fraction form
    1,201,750.80/1,811,061.75 = 1,081,927.50/x
  3. Step 3: Cross multiply
    1,201,750.80x = 1,811,061.75 × 1,081,927.50
  4. Step 4: Simplify right side
    1,201,750.80x = 1,959,437,511,523.13
  5. Step 5: Solve for x
    x = 1,959,437,511,523.13/1,201,750.80
  6. Step 6: Final answer
    x = 1,630,485.71

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.