Home / 1,128,516.80-1,557,353.09-645,092.33

Finding the Fourth Proportional to 1,128,516.80, 1,557,353.09 and 645,092.33

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Solution

The fourth proportional to 1,128,516.80, 1,557,353.09 and 645,092.33 is: 890,227.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,516.80 : 1,557,353.09 = 645,092.33 : x
  2. Step 2: Convert to fraction form
    1,128,516.80/1,557,353.09 = 645,092.33/x
  3. Step 3: Cross multiply
    1,128,516.80x = 1,557,353.09 × 645,092.33
  4. Step 4: Simplify right side
    1,128,516.80x = 1,004,636,522,448.57
  5. Step 5: Solve for x
    x = 1,004,636,522,448.57/1,128,516.80
  6. Step 6: Final answer
    x = 890,227.36

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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.