Home / 770,571.20-1,155,835.20-349,846.40

Finding the Fourth Proportional to 770,571.20, 1,155,835.20 and 349,846.40

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Solution

The fourth proportional to 770,571.20, 1,155,835.20 and 349,846.40 is: 524,759.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,571.20 : 1,155,835.20 = 349,846.40 : x
  2. Step 2: Convert to fraction form
    770,571.20/1,155,835.20 = 349,846.40/x
  3. Step 3: Cross multiply
    770,571.20x = 1,155,835.20 × 349,846.40
  4. Step 4: Simplify right side
    770,571.20x = 404,364,783,713.28
  5. Step 5: Solve for x
    x = 404,364,783,713.28/770,571.20
  6. Step 6: Final answer
    x = 524,759.79

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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.