Home / 1,363,642.68-1,881,409.89-790,568.49

Finding the Fourth Proportional to 1,363,642.68, 1,881,409.89 and 790,568.49

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Solution

The fourth proportional to 1,363,642.68, 1,881,409.89 and 790,568.49 is: 1,090,742.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363,642.68 : 1,881,409.89 = 790,568.49 : x
  2. Step 2: Convert to fraction form
    1,363,642.68/1,881,409.89 = 790,568.49/x
  3. Step 3: Cross multiply
    1,363,642.68x = 1,881,409.89 × 790,568.49
  4. Step 4: Simplify right side
    1,363,642.68x = 1,487,383,373,021.88
  5. Step 5: Solve for x
    x = 1,487,383,373,021.88/1,363,642.68
  6. Step 6: Final answer
    x = 1,090,742.76

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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.