Home / 1,287,800.56-1,777,171.74-804,646

Finding the Fourth Proportional to 1,287,800.56, 1,777,171.74 and 804,646

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Solution

The fourth proportional to 1,287,800.56, 1,777,171.74 and 804,646 is: 1,110,415.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,800.56 : 1,777,171.74 = 804,646 : x
  2. Step 2: Convert to fraction form
    1,287,800.56/1,777,171.74 = 804,646/x
  3. Step 3: Cross multiply
    1,287,800.56x = 1,777,171.74 × 804,646
  4. Step 4: Simplify right side
    1,287,800.56x = 1,429,994,131,904.04
  5. Step 5: Solve for x
    x = 1,429,994,131,904.04/1,287,800.56
  6. Step 6: Final answer
    x = 1,110,415.83

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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.