Home / 5,408,644.71-8,112,986.23-1,309,968.57

Finding the Fourth Proportional to 5,408,644.71, 8,112,986.23 and 1,309,968.57

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Solution

The fourth proportional to 5,408,644.71, 8,112,986.23 and 1,309,968.57 is: 1,964,957.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408,644.71 : 8,112,986.23 = 1,309,968.57 : x
  2. Step 2: Convert to fraction form
    5,408,644.71/8,112,986.23 = 1,309,968.57/x
  3. Step 3: Cross multiply
    5,408,644.71x = 8,112,986.23 × 1,309,968.57
  4. Step 4: Simplify right side
    5,408,644.71x = 10,627,756,970,142.79
  5. Step 5: Solve for x
    x = 10,627,756,970,142.79/5,408,644.71
  6. Step 6: Final answer
    x = 1,964,957.50

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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.