Home / 767,715.80-1,150,104.90-412,611.80

Finding the Fourth Proportional to 767,715.80, 1,150,104.90 and 412,611.80

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Solution

The fourth proportional to 767,715.80, 1,150,104.90 and 412,611.80 is: 618,128.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,715.80 : 1,150,104.90 = 412,611.80 : x
  2. Step 2: Convert to fraction form
    767,715.80/1,150,104.90 = 412,611.80/x
  3. Step 3: Cross multiply
    767,715.80x = 1,150,104.90 × 412,611.80
  4. Step 4: Simplify right side
    767,715.80x = 474,546,852,977.82
  5. Step 5: Solve for x
    x = 474,546,852,977.82/767,715.80
  6. Step 6: Final answer
    x = 618,128.29

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1.5x scale

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.