Home / 1,327,790.63-1,988,322.66-823,336.80

Finding the Fourth Proportional to 1,327,790.63, 1,988,322.66 and 823,336.80

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Solution

The fourth proportional to 1,327,790.63, 1,988,322.66 and 823,336.80 is: 1,232,919.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,790.63 : 1,988,322.66 = 823,336.80 : x
  2. Step 2: Convert to fraction form
    1,327,790.63/1,988,322.66 = 823,336.80/x
  3. Step 3: Cross multiply
    1,327,790.63x = 1,988,322.66 × 823,336.80
  4. Step 4: Simplify right side
    1,327,790.63x = 1,637,059,216,251.89
  5. Step 5: Solve for x
    x = 1,637,059,216,251.89/1,327,790.63
  6. Step 6: Final answer
    x = 1,232,919.70

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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.