Home / 1,287,782.73-1,777,147.05-804,628.08

Finding the Fourth Proportional to 1,287,782.73, 1,777,147.05 and 804,628.08

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Solution

The fourth proportional to 1,287,782.73, 1,777,147.05 and 804,628.08 is: 1,110,391.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,782.73 : 1,777,147.05 = 804,628.08 : x
  2. Step 2: Convert to fraction form
    1,287,782.73/1,777,147.05 = 804,628.08/x
  3. Step 3: Cross multiply
    1,287,782.73x = 1,777,147.05 × 804,628.08
  4. Step 4: Simplify right side
    1,287,782.73x = 1,429,942,418,719.16
  5. Step 5: Solve for x
    x = 1,429,942,418,719.16/1,287,782.73
  6. Step 6: Final answer
    x = 1,110,391.05

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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.