Home / 1,128,750.26-1,557,231.96-645,055.92

Finding the Fourth Proportional to 1,128,750.26, 1,557,231.96 and 645,055.92

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Solution

The fourth proportional to 1,128,750.26, 1,557,231.96 and 645,055.92 is: 889,923.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,750.26 : 1,557,231.96 = 645,055.92 : x
  2. Step 2: Convert to fraction form
    1,128,750.26/1,557,231.96 = 645,055.92/x
  3. Step 3: Cross multiply
    1,128,750.26x = 1,557,231.96 × 645,055.92
  4. Step 4: Simplify right side
    1,128,750.26x = 1,004,501,695,215.94
  5. Step 5: Solve for x
    x = 1,004,501,695,215.94/1,128,750.26
  6. Step 6: Final answer
    x = 889,923.78

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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.