Home / 809,422.39-1,116,973.56-446,838.45

Finding the Fourth Proportional to 809,422.39, 1,116,973.56 and 446,838.45

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Solution

The fourth proportional to 809,422.39, 1,116,973.56 and 446,838.45 is: 616,620.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,422.39 : 1,116,973.56 = 446,838.45 : x
  2. Step 2: Convert to fraction form
    809,422.39/1,116,973.56 = 446,838.45/x
  3. Step 3: Cross multiply
    809,422.39x = 1,116,973.56 × 446,838.45
  4. Step 4: Simplify right side
    809,422.39x = 499,106,734,241.38
  5. Step 5: Solve for x
    x = 499,106,734,241.38/809,422.39
  6. Step 6: Final answer
    x = 616,620.86

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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.