Home / 404,849.94-606,868.48-138,428.23

Finding the Fourth Proportional to 404,849.94, 606,868.48 and 138,428.23

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Solution

The fourth proportional to 404,849.94, 606,868.48 and 138,428.23 is: 207,503.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,849.94 : 606,868.48 = 138,428.23 : x
  2. Step 2: Convert to fraction form
    404,849.94/606,868.48 = 138,428.23/x
  3. Step 3: Cross multiply
    404,849.94x = 606,868.48 × 138,428.23
  4. Step 4: Simplify right side
    404,849.94x = 84,007,729,529.19
  5. Step 5: Solve for x
    x = 84,007,729,529.19/404,849.94
  6. Step 6: Final answer
    x = 207,503.38

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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.