Home / 1,914,636.92-2,642,649.22-1,190,031.90

Finding the Fourth Proportional to 1,914,636.92, 2,642,649.22 and 1,190,031.90

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Solution

The fourth proportional to 1,914,636.92, 2,642,649.22 and 1,190,031.90 is: 1,642,523.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914,636.92 : 2,642,649.22 = 1,190,031.90 : x
  2. Step 2: Convert to fraction form
    1,914,636.92/2,642,649.22 = 1,190,031.90/x
  3. Step 3: Cross multiply
    1,914,636.92x = 2,642,649.22 × 1,190,031.90
  4. Step 4: Simplify right side
    1,914,636.92x = 3,144,836,872,310.12
  5. Step 5: Solve for x
    x = 3,144,836,872,310.12/1,914,636.92
  6. Step 6: Final answer
    x = 1,642,523.89

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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.