Home / 820,223.20-1,229,897.40-346,373.20

Finding the Fourth Proportional to 820,223.20, 1,229,897.40 and 346,373.20

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Solution

The fourth proportional to 820,223.20, 1,229,897.40 and 346,373.20 is: 519,375.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,223.20 : 1,229,897.40 = 346,373.20 : x
  2. Step 2: Convert to fraction form
    820,223.20/1,229,897.40 = 346,373.20/x
  3. Step 3: Cross multiply
    820,223.20x = 1,229,897.40 × 346,373.20
  4. Step 4: Simplify right side
    820,223.20x = 426,003,498,109.68
  5. Step 5: Solve for x
    x = 426,003,498,109.68/820,223.20
  6. Step 6: Final answer
    x = 519,375.09

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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.