Home / 1,259,821.42-1,889,715.72-313,200.34

Finding the Fourth Proportional to 1,259,821.42, 1,889,715.72 and 313,200.34

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Solution

The fourth proportional to 1,259,821.42, 1,889,715.72 and 313,200.34 is: 469,796.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,821.42 : 1,889,715.72 = 313,200.34 : x
  2. Step 2: Convert to fraction form
    1,259,821.42/1,889,715.72 = 313,200.34/x
  3. Step 3: Cross multiply
    1,259,821.42x = 1,889,715.72 × 313,200.34
  4. Step 4: Simplify right side
    1,259,821.42x = 591,859,606,007.35
  5. Step 5: Solve for x
    x = 591,859,606,007.35/1,259,821.42
  6. Step 6: Final answer
    x = 469,796.43

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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.