Home / 2,138,924-2,951,715.12-1,279,520.48

Finding the Fourth Proportional to 2,138,924, 2,951,715.12 and 1,279,520.48

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Solution

The fourth proportional to 2,138,924, 2,951,715.12 and 1,279,520.48 is: 1,765,738.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,924 : 2,951,715.12 = 1,279,520.48 : x
  2. Step 2: Convert to fraction form
    2,138,924/2,951,715.12 = 1,279,520.48/x
  3. Step 3: Cross multiply
    2,138,924x = 2,951,715.12 × 1,279,520.48
  4. Step 4: Simplify right side
    2,138,924x = 3,776,779,947,165.66
  5. Step 5: Solve for x
    x = 3,776,779,947,165.66/2,138,924
  6. Step 6: Final answer
    x = 1,765,738.26

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1.5x scale

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.