Home / 1,512,133.72-2,086,720.08-823,813.81

Finding the Fourth Proportional to 1,512,133.72, 2,086,720.08 and 823,813.81

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Solution

The fourth proportional to 1,512,133.72, 2,086,720.08 and 823,813.81 is: 1,136,849.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,133.72 : 2,086,720.08 = 823,813.81 : x
  2. Step 2: Convert to fraction form
    1,512,133.72/2,086,720.08 = 823,813.81/x
  3. Step 3: Cross multiply
    1,512,133.72x = 2,086,720.08 × 823,813.81
  4. Step 4: Simplify right side
    1,512,133.72x = 1,719,068,809,074.70
  5. Step 5: Solve for x
    x = 1,719,068,809,074.70/1,512,133.72
  6. Step 6: Final answer
    x = 1,136,849.73

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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.