Home / 820,046.20-1,230,242.10-346,487.80

Finding the Fourth Proportional to 820,046.20, 1,230,242.10 and 346,487.80

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Solution

The fourth proportional to 820,046.20, 1,230,242.10 and 346,487.80 is: 519,804.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,046.20 : 1,230,242.10 = 346,487.80 : x
  2. Step 2: Convert to fraction form
    820,046.20/1,230,242.10 = 346,487.80/x
  3. Step 3: Cross multiply
    820,046.20x = 1,230,242.10 × 346,487.80
  4. Step 4: Simplify right side
    820,046.20x = 426,263,878,696.38
  5. Step 5: Solve for x
    x = 426,263,878,696.38/820,046.20
  6. Step 6: Final answer
    x = 519,804.71

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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.