Home / 786,412.80-1,179,619.20-449,323.20

Finding the Fourth Proportional to 786,412.80, 1,179,619.20 and 449,323.20

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Solution

The fourth proportional to 786,412.80, 1,179,619.20 and 449,323.20 is: 673,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,412.80 : 1,179,619.20 = 449,323.20 : x
  2. Step 2: Convert to fraction form
    786,412.80/1,179,619.20 = 449,323.20/x
  3. Step 3: Cross multiply
    786,412.80x = 1,179,619.20 × 449,323.20
  4. Step 4: Simplify right side
    786,412.80x = 530,030,273,725.44
  5. Step 5: Solve for x
    x = 530,030,273,725.44/786,412.80
  6. Step 6: Final answer
    x = 673,984.80

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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.