Home / 1,297,813.80-1,946,375.10-399,253.80

Finding the Fourth Proportional to 1,297,813.80, 1,946,375.10 and 399,253.80

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Solution

The fourth proportional to 1,297,813.80, 1,946,375.10 and 399,253.80 is: 598,774.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,813.80 : 1,946,375.10 = 399,253.80 : x
  2. Step 2: Convert to fraction form
    1,297,813.80/1,946,375.10 = 399,253.80/x
  3. Step 3: Cross multiply
    1,297,813.80x = 1,946,375.10 × 399,253.80
  4. Step 4: Simplify right side
    1,297,813.80x = 777,097,654,900.38
  5. Step 5: Solve for x
    x = 777,097,654,900.38/1,297,813.80
  6. Step 6: Final answer
    x = 598,774.38

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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.