Home / 777,404.67-1,072,854.97-455,218.57

Finding the Fourth Proportional to 777,404.67, 1,072,854.97 and 455,218.57

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Solution

The fourth proportional to 777,404.67, 1,072,854.97 and 455,218.57 is: 628,223.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,404.67 : 1,072,854.97 = 455,218.57 : x
  2. Step 2: Convert to fraction form
    777,404.67/1,072,854.97 = 455,218.57/x
  3. Step 3: Cross multiply
    777,404.67x = 1,072,854.97 × 455,218.57
  4. Step 4: Simplify right side
    777,404.67x = 488,383,499,896.52
  5. Step 5: Solve for x
    x = 488,383,499,896.52/777,404.67
  6. Step 6: Final answer
    x = 628,223.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.