Home / 2,815,880.28-4,223,770.20-685,959.36

Finding the Fourth Proportional to 2,815,880.28, 4,223,770.20 and 685,959.36

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Solution

The fourth proportional to 2,815,880.28, 4,223,770.20 and 685,959.36 is: 1,028,926.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815,880.28 : 4,223,770.20 = 685,959.36 : x
  2. Step 2: Convert to fraction form
    2,815,880.28/4,223,770.20 = 685,959.36/x
  3. Step 3: Cross multiply
    2,815,880.28x = 4,223,770.20 × 685,959.36
  4. Step 4: Simplify right side
    2,815,880.28x = 2,897,334,703,179.07
  5. Step 5: Solve for x
    x = 2,897,334,703,179.07/2,815,880.28
  6. Step 6: Final answer
    x = 1,028,926.81

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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.