Home / 815,783.87-1,125,813.46-558,200.84

Finding the Fourth Proportional to 815,783.87, 1,125,813.46 and 558,200.84

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Solution

The fourth proportional to 815,783.87, 1,125,813.46 and 558,200.84 is: 770,338.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,783.87 : 1,125,813.46 = 558,200.84 : x
  2. Step 2: Convert to fraction form
    815,783.87/1,125,813.46 = 558,200.84/x
  3. Step 3: Cross multiply
    815,783.87x = 1,125,813.46 × 558,200.84
  4. Step 4: Simplify right side
    815,783.87x = 628,430,013,426.24
  5. Step 5: Solve for x
    x = 628,430,013,426.24/815,783.87
  6. Step 6: Final answer
    x = 770,338.86

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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.