Home / 1,090,743.45-1,505,211.62-631,920.57

Finding the Fourth Proportional to 1,090,743.45, 1,505,211.62 and 631,920.57

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Solution

The fourth proportional to 1,090,743.45, 1,505,211.62 and 631,920.57 is: 872,042.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,743.45 : 1,505,211.62 = 631,920.57 : x
  2. Step 2: Convert to fraction form
    1,090,743.45/1,505,211.62 = 631,920.57/x
  3. Step 3: Cross multiply
    1,090,743.45x = 1,505,211.62 × 631,920.57
  4. Step 4: Simplify right side
    1,090,743.45x = 951,174,181,721.42
  5. Step 5: Solve for x
    x = 951,174,181,721.42/1,090,743.45
  6. Step 6: Final answer
    x = 872,042.08

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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.