Home / 767,806.35-1,151,709.30-412,331.37

Finding the Fourth Proportional to 767,806.35, 1,151,709.30 and 412,331.37

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Solution

The fourth proportional to 767,806.35, 1,151,709.30 and 412,331.37 is: 618,496.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,806.35 : 1,151,709.30 = 412,331.37 : x
  2. Step 2: Convert to fraction form
    767,806.35/1,151,709.30 = 412,331.37/x
  3. Step 3: Cross multiply
    767,806.35x = 1,151,709.30 × 412,331.37
  4. Step 4: Simplify right side
    767,806.35x = 474,885,873,510.74
  5. Step 5: Solve for x
    x = 474,885,873,510.74/767,806.35
  6. Step 6: Final answer
    x = 618,496.93

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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.