Home / 770,619.20-1,155,928.80-534,228.80

Finding the Fourth Proportional to 770,619.20, 1,155,928.80 and 534,228.80

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Solution

The fourth proportional to 770,619.20, 1,155,928.80 and 534,228.80 is: 801,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,619.20 : 1,155,928.80 = 534,228.80 : x
  2. Step 2: Convert to fraction form
    770,619.20/1,155,928.80 = 534,228.80/x
  3. Step 3: Cross multiply
    770,619.20x = 1,155,928.80 × 534,228.80
  4. Step 4: Simplify right side
    770,619.20x = 617,530,455,709.44
  5. Step 5: Solve for x
    x = 617,530,455,709.44/770,619.20
  6. Step 6: Final answer
    x = 801,343.20

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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.