Home / 1,287,855.36-1,777,466.88-744,011.64

Finding the Fourth Proportional to 1,287,855.36, 1,777,466.88 and 744,011.64

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Solution

The fourth proportional to 1,287,855.36, 1,777,466.88 and 744,011.64 is: 1,026,866.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,855.36 : 1,777,466.88 = 744,011.64 : x
  2. Step 2: Convert to fraction form
    1,287,855.36/1,777,466.88 = 744,011.64/x
  3. Step 3: Cross multiply
    1,287,855.36x = 1,777,466.88 × 744,011.64
  4. Step 4: Simplify right side
    1,287,855.36x = 1,322,456,048,434.48
  5. Step 5: Solve for x
    x = 1,322,456,048,434.48/1,287,855.36
  6. Step 6: Final answer
    x = 1,026,866.91

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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.