Home / 1,223,180.80-1,834,115.10-512,405.80

Finding the Fourth Proportional to 1,223,180.80, 1,834,115.10 and 512,405.80

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Solution

The fourth proportional to 1,223,180.80, 1,834,115.10 and 512,405.80 is: 768,333.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,180.80 : 1,834,115.10 = 512,405.80 : x
  2. Step 2: Convert to fraction form
    1,223,180.80/1,834,115.10 = 512,405.80/x
  3. Step 3: Cross multiply
    1,223,180.80x = 1,834,115.10 × 512,405.80
  4. Step 4: Simplify right side
    1,223,180.80x = 939,811,215,107.58
  5. Step 5: Solve for x
    x = 939,811,215,107.58/1,223,180.80
  6. Step 6: Final answer
    x = 768,333.85

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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.