Home / 801,074.90-1,201,223.55-445,711.70

Finding the Fourth Proportional to 801,074.90, 1,201,223.55 and 445,711.70

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Solution

The fourth proportional to 801,074.90, 1,201,223.55 and 445,711.70 is: 668,351.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,074.90 : 1,201,223.55 = 445,711.70 : x
  2. Step 2: Convert to fraction form
    801,074.90/1,201,223.55 = 445,711.70/x
  3. Step 3: Cross multiply
    801,074.90x = 1,201,223.55 × 445,711.70
  4. Step 4: Simplify right side
    801,074.90x = 535,399,390,550.54
  5. Step 5: Solve for x
    x = 535,399,390,550.54/801,074.90
  6. Step 6: Final answer
    x = 668,351.22

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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.