Home / 815,467.20-1,223,200.80-605,515.20

Finding the Fourth Proportional to 815,467.20, 1,223,200.80 and 605,515.20

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Solution

The fourth proportional to 815,467.20, 1,223,200.80 and 605,515.20 is: 908,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,467.20 : 1,223,200.80 = 605,515.20 : x
  2. Step 2: Convert to fraction form
    815,467.20/1,223,200.80 = 605,515.20/x
  3. Step 3: Cross multiply
    815,467.20x = 1,223,200.80 × 605,515.20
  4. Step 4: Simplify right side
    815,467.20x = 740,666,677,052.16
  5. Step 5: Solve for x
    x = 740,666,677,052.16/815,467.20
  6. Step 6: Final answer
    x = 908,272.80

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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.