Home / 2,275,122.12-3,139,649.28-1,256,505

Finding the Fourth Proportional to 2,275,122.12, 3,139,649.28 and 1,256,505

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Solution

The fourth proportional to 2,275,122.12, 3,139,649.28 and 1,256,505 is: 1,733,966.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275,122.12 : 3,139,649.28 = 1,256,505 : x
  2. Step 2: Convert to fraction form
    2,275,122.12/3,139,649.28 = 1,256,505/x
  3. Step 3: Cross multiply
    2,275,122.12x = 3,139,649.28 × 1,256,505
  4. Step 4: Simplify right side
    2,275,122.12x = 3,944,985,018,566.40
  5. Step 5: Solve for x
    x = 3,944,985,018,566.40/2,275,122.12
  6. Step 6: Final answer
    x = 1,733,966.27

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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.