Home / 767,806.85-1,151,710.05-412,331.87

Finding the Fourth Proportional to 767,806.85, 1,151,710.05 and 412,331.87

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Solution

The fourth proportional to 767,806.85, 1,151,710.05 and 412,331.87 is: 618,497.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,806.85 : 1,151,710.05 = 412,331.87 : x
  2. Step 2: Convert to fraction form
    767,806.85/1,151,710.05 = 412,331.87/x
  3. Step 3: Cross multiply
    767,806.85x = 1,151,710.05 × 412,331.87
  4. Step 4: Simplify right side
    767,806.85x = 474,886,758,614.29
  5. Step 5: Solve for x
    x = 474,886,758,614.29/767,806.85
  6. Step 6: Final answer
    x = 618,497.68

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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.