Home / 1,412,638-2,105,649.54-1,299,263.92

Finding the Fourth Proportional to 1,412,638, 2,105,649.54 and 1,299,263.92

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Solution

The fourth proportional to 1,412,638, 2,105,649.54 and 1,299,263.92 is: 1,936,656.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,638 : 2,105,649.54 = 1,299,263.92 : x
  2. Step 2: Convert to fraction form
    1,412,638/2,105,649.54 = 1,299,263.92/x
  3. Step 3: Cross multiply
    1,412,638x = 2,105,649.54 × 1,299,263.92
  4. Step 4: Simplify right side
    1,412,638x = 2,735,794,475,486.60
  5. Step 5: Solve for x
    x = 2,735,794,475,486.60/1,412,638
  6. Step 6: Final answer
    x = 1,936,656.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.