Home / 1,208,179.40-1,811,117.10-449,817.80

Finding the Fourth Proportional to 1,208,179.40, 1,811,117.10 and 449,817.80

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Solution

The fourth proportional to 1,208,179.40, 1,811,117.10 and 449,817.80 is: 674,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,179.40 : 1,811,117.10 = 449,817.80 : x
  2. Step 2: Convert to fraction form
    1,208,179.40/1,811,117.10 = 449,817.80/x
  3. Step 3: Cross multiply
    1,208,179.40x = 1,811,117.10 × 449,817.80
  4. Step 4: Simplify right side
    1,208,179.40x = 814,672,709,464.38
  5. Step 5: Solve for x
    x = 814,672,709,464.38/1,208,179.40
  6. Step 6: Final answer
    x = 674,297.80

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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.