Home / 1,287,784.48-1,777,149.46-804,629.84

Finding the Fourth Proportional to 1,287,784.48, 1,777,149.46 and 804,629.84

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Solution

The fourth proportional to 1,287,784.48, 1,777,149.46 and 804,629.84 is: 1,110,393.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,784.48 : 1,777,149.46 = 804,629.84 : x
  2. Step 2: Convert to fraction form
    1,287,784.48/1,777,149.46 = 804,629.84/x
  3. Step 3: Cross multiply
    1,287,784.48x = 1,777,149.46 × 804,629.84
  4. Step 4: Simplify right side
    1,287,784.48x = 1,429,947,485,655.89
  5. Step 5: Solve for x
    x = 1,429,947,485,655.89/1,287,784.48
  6. Step 6: Final answer
    x = 1,110,393.48

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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.