Home / 2,688,131.22-4,031,559.90-768,983.28

Finding the Fourth Proportional to 2,688,131.22, 4,031,559.90 and 768,983.28

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Solution

The fourth proportional to 2,688,131.22, 4,031,559.90 and 768,983.28 is: 1,153,292.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,131.22 : 4,031,559.90 = 768,983.28 : x
  2. Step 2: Convert to fraction form
    2,688,131.22/4,031,559.90 = 768,983.28/x
  3. Step 3: Cross multiply
    2,688,131.22x = 4,031,559.90 × 768,983.28
  4. Step 4: Simplify right side
    2,688,131.22x = 3,100,202,155,418.47
  5. Step 5: Solve for x
    x = 3,100,202,155,418.47/2,688,131.22
  6. Step 6: Final answer
    x = 1,153,292.72

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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.