Home / 767,754.70-1,151,631.92-412,279.72

Finding the Fourth Proportional to 767,754.70, 1,151,631.92 and 412,279.72

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Solution

The fourth proportional to 767,754.70, 1,151,631.92 and 412,279.72 is: 618,419.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,754.70 : 1,151,631.92 = 412,279.72 : x
  2. Step 2: Convert to fraction form
    767,754.70/1,151,631.92 = 412,279.72/x
  3. Step 3: Cross multiply
    767,754.70x = 1,151,631.92 × 412,279.72
  4. Step 4: Simplify right side
    767,754.70x = 474,794,483,459.26
  5. Step 5: Solve for x
    x = 474,794,483,459.26/767,754.70
  6. Step 6: Final answer
    x = 618,419.51

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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.