Home / 741,669-1,112,668.92-315,218.28

Finding the Fourth Proportional to 741,669, 1,112,668.92 and 315,218.28

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Solution

The fourth proportional to 741,669, 1,112,668.92 and 315,218.28 is: 472,897.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,669 : 1,112,668.92 = 315,218.28 : x
  2. Step 2: Convert to fraction form
    741,669/1,112,668.92 = 315,218.28/x
  3. Step 3: Cross multiply
    741,669x = 1,112,668.92 × 315,218.28
  4. Step 4: Simplify right side
    741,669x = 350,733,583,171.86
  5. Step 5: Solve for x
    x = 350,733,583,171.86/741,669
  6. Step 6: Final answer
    x = 472,897.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.