Home / 819,918.45-1,131,489.27-457,333.02

Finding the Fourth Proportional to 819,918.45, 1,131,489.27 and 457,333.02

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Solution

The fourth proportional to 819,918.45, 1,131,489.27 and 457,333.02 is: 631,120.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,918.45 : 1,131,489.27 = 457,333.02 : x
  2. Step 2: Convert to fraction form
    819,918.45/1,131,489.27 = 457,333.02/x
  3. Step 3: Cross multiply
    819,918.45x = 1,131,489.27 × 457,333.02
  4. Step 4: Simplify right side
    819,918.45x = 517,467,404,946.70
  5. Step 5: Solve for x
    x = 517,467,404,946.70/819,918.45
  6. Step 6: Final answer
    x = 631,120.58

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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.