Home / 800,884.45-1,105,220.97-438,308.10

Finding the Fourth Proportional to 800,884.45, 1,105,220.97 and 438,308.10

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Solution

The fourth proportional to 800,884.45, 1,105,220.97 and 438,308.10 is: 604,865.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,884.45 : 1,105,220.97 = 438,308.10 : x
  2. Step 2: Convert to fraction form
    800,884.45/1,105,220.97 = 438,308.10/x
  3. Step 3: Cross multiply
    800,884.45x = 1,105,220.97 × 438,308.10
  4. Step 4: Simplify right side
    800,884.45x = 484,427,303,440.86
  5. Step 5: Solve for x
    x = 484,427,303,440.86/800,884.45
  6. Step 6: Final answer
    x = 604,865.41

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1.5x scale

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.