Home / 757,824.80-1,134,112.80-521,628.80

Finding the Fourth Proportional to 757,824.80, 1,134,112.80 and 521,628.80

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Solution

The fourth proportional to 757,824.80, 1,134,112.80 and 521,628.80 is: 780,636.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,824.80 : 1,134,112.80 = 521,628.80 : x
  2. Step 2: Convert to fraction form
    757,824.80/1,134,112.80 = 521,628.80/x
  3. Step 3: Cross multiply
    757,824.80x = 1,134,112.80 × 521,628.80
  4. Step 4: Simplify right side
    757,824.80x = 591,585,898,928.64
  5. Step 5: Solve for x
    x = 591,585,898,928.64/757,824.80
  6. Step 6: Final answer
    x = 780,636.76

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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.