Home / 815,783.37-1,125,812.77-558,200.33

Finding the Fourth Proportional to 815,783.37, 1,125,812.77 and 558,200.33

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Solution

The fourth proportional to 815,783.37, 1,125,812.77 and 558,200.33 is: 770,338.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,783.37 : 1,125,812.77 = 558,200.33 : x
  2. Step 2: Convert to fraction form
    815,783.37/1,125,812.77 = 558,200.33/x
  3. Step 3: Cross multiply
    815,783.37x = 1,125,812.77 × 558,200.33
  4. Step 4: Simplify right side
    815,783.37x = 628,429,061,151.25
  5. Step 5: Solve for x
    x = 628,429,061,151.25/815,783.37
  6. Step 6: Final answer
    x = 770,338.16

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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.