Home / 815,515.91-1,125,425.86-448,008.50

Finding the Fourth Proportional to 815,515.91, 1,125,425.86 and 448,008.50

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Solution

The fourth proportional to 815,515.91, 1,125,425.86 and 448,008.50 is: 618,259.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,515.91 : 1,125,425.86 = 448,008.50 : x
  2. Step 2: Convert to fraction form
    815,515.91/1,125,425.86 = 448,008.50/x
  3. Step 3: Cross multiply
    815,515.91x = 1,125,425.86 × 448,008.50
  4. Step 4: Simplify right side
    815,515.91x = 504,200,351,399.81
  5. Step 5: Solve for x
    x = 504,200,351,399.81/815,515.91
  6. Step 6: Final answer
    x = 618,259.37

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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.