Home / 815,716.14-1,125,720.20-558,133.34

Finding the Fourth Proportional to 815,716.14, 1,125,720.20 and 558,133.34

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Solution

The fourth proportional to 815,716.14, 1,125,720.20 and 558,133.34 is: 770,245.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,716.14 : 1,125,720.20 = 558,133.34 : x
  2. Step 2: Convert to fraction form
    815,716.14/1,125,720.20 = 558,133.34/x
  3. Step 3: Cross multiply
    815,716.14x = 1,125,720.20 × 558,133.34
  4. Step 4: Simplify right side
    815,716.14x = 628,301,967,758.70
  5. Step 5: Solve for x
    x = 628,301,967,758.70/815,716.14
  6. Step 6: Final answer
    x = 770,245.84

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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.