Home / 1,361,251.96-2,043,140.43-687,806.20

Finding the Fourth Proportional to 1,361,251.96, 2,043,140.43 and 687,806.20

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Solution

The fourth proportional to 1,361,251.96, 2,043,140.43 and 687,806.20 is: 1,032,347.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,251.96 : 2,043,140.43 = 687,806.20 : x
  2. Step 2: Convert to fraction form
    1,361,251.96/2,043,140.43 = 687,806.20/x
  3. Step 3: Cross multiply
    1,361,251.96x = 2,043,140.43 × 687,806.20
  4. Step 4: Simplify right side
    1,361,251.96x = 1,405,284,655,224.67
  5. Step 5: Solve for x
    x = 1,405,284,655,224.67/1,361,251.96
  6. Step 6: Final answer
    x = 1,032,347.20

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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.