Home / 800,884.95-1,105,221.66-438,308.60

Finding the Fourth Proportional to 800,884.95, 1,105,221.66 and 438,308.60

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Solution

The fourth proportional to 800,884.95, 1,105,221.66 and 438,308.60 is: 604,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,884.95 : 1,105,221.66 = 438,308.60 : x
  2. Step 2: Convert to fraction form
    800,884.95/1,105,221.66 = 438,308.60/x
  3. Step 3: Cross multiply
    800,884.95x = 1,105,221.66 × 438,308.60
  4. Step 4: Simplify right side
    800,884.95x = 484,428,152,958.17
  5. Step 5: Solve for x
    x = 484,428,152,958.17/800,884.95
  6. Step 6: Final answer
    x = 604,866.10

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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.