Home / 1,138,147.56-1,570,675.32-628,882.92

Finding the Fourth Proportional to 1,138,147.56, 1,570,675.32 and 628,882.92

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Solution

The fourth proportional to 1,138,147.56, 1,570,675.32 and 628,882.92 is: 867,875.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,147.56 : 1,570,675.32 = 628,882.92 : x
  2. Step 2: Convert to fraction form
    1,138,147.56/1,570,675.32 = 628,882.92/x
  3. Step 3: Cross multiply
    1,138,147.56x = 1,570,675.32 × 628,882.92
  4. Step 4: Simplify right side
    1,138,147.56x = 987,770,881,613.54
  5. Step 5: Solve for x
    x = 987,770,881,613.54/1,138,147.56
  6. Step 6: Final answer
    x = 867,875.94

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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.