Home / 741,945.19-1,112,138.67-472,279.89

Finding the Fourth Proportional to 741,945.19, 1,112,138.67 and 472,279.89

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Solution

The fourth proportional to 741,945.19, 1,112,138.67 and 472,279.89 is: 707,923.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,945.19 : 1,112,138.67 = 472,279.89 : x
  2. Step 2: Convert to fraction form
    741,945.19/1,112,138.67 = 472,279.89/x
  3. Step 3: Cross multiply
    741,945.19x = 1,112,138.67 × 472,279.89
  4. Step 4: Simplify right side
    741,945.19x = 525,240,729,553.57
  5. Step 5: Solve for x
    x = 525,240,729,553.57/741,945.19
  6. Step 6: Final answer
    x = 707,923.89

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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.