Home / 455,221.26-681,955.56-284,509.71

Finding the Fourth Proportional to 455,221.26, 681,955.56 and 284,509.71

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Solution

The fourth proportional to 455,221.26, 681,955.56 and 284,509.71 is: 426,216.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,221.26 : 681,955.56 = 284,509.71 : x
  2. Step 2: Convert to fraction form
    455,221.26/681,955.56 = 284,509.71/x
  3. Step 3: Cross multiply
    455,221.26x = 681,955.56 × 284,509.71
  4. Step 4: Simplify right side
    455,221.26x = 194,022,978,608.49
  5. Step 5: Solve for x
    x = 194,022,978,608.49/455,221.26
  6. Step 6: Final answer
    x = 426,216.87

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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.