Home / 571,993.05-789,335.40-313,869.21

Finding the Fourth Proportional to 571,993.05, 789,335.40 and 313,869.21

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Solution

The fourth proportional to 571,993.05, 789,335.40 and 313,869.21 is: 433,131.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,993.05 : 789,335.40 = 313,869.21 : x
  2. Step 2: Convert to fraction form
    571,993.05/789,335.40 = 313,869.21/x
  3. Step 3: Cross multiply
    571,993.05x = 789,335.40 × 313,869.21
  4. Step 4: Simplify right side
    571,993.05x = 247,748,074,874.52
  5. Step 5: Solve for x
    x = 247,748,074,874.52/571,993.05
  6. Step 6: Final answer
    x = 433,131.26

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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.