Home / 847,223.20-1,270,489.20-285,968.80

Finding the Fourth Proportional to 847,223.20, 1,270,489.20 and 285,968.80

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Solution

The fourth proportional to 847,223.20, 1,270,489.20 and 285,968.80 is: 428,836.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,223.20 : 1,270,489.20 = 285,968.80 : x
  2. Step 2: Convert to fraction form
    847,223.20/1,270,489.20 = 285,968.80/x
  3. Step 3: Cross multiply
    847,223.20x = 1,270,489.20 × 285,968.80
  4. Step 4: Simplify right side
    847,223.20x = 363,320,271,936.96
  5. Step 5: Solve for x
    x = 363,320,271,936.96/847,223.20
  6. Step 6: Final answer
    x = 428,836.55

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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.