Home / 660,828.13-991,571.46-261,756.52

Finding the Fourth Proportional to 660,828.13, 991,571.46 and 261,756.52

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Solution

The fourth proportional to 660,828.13, 991,571.46 and 261,756.52 is: 392,765.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,828.13 : 991,571.46 = 261,756.52 : x
  2. Step 2: Convert to fraction form
    660,828.13/991,571.46 = 261,756.52/x
  3. Step 3: Cross multiply
    660,828.13x = 991,571.46 × 261,756.52
  4. Step 4: Simplify right side
    660,828.13x = 259,550,294,700.92
  5. Step 5: Solve for x
    x = 259,550,294,700.92/660,828.13
  6. Step 6: Final answer
    x = 392,765.20

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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.