Home / 1,868,122.11-2,802,185.90-520,288.59

Finding the Fourth Proportional to 1,868,122.11, 2,802,185.90 and 520,288.59

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Solution

The fourth proportional to 1,868,122.11, 2,802,185.90 and 520,288.59 is: 780,433.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,122.11 : 2,802,185.90 = 520,288.59 : x
  2. Step 2: Convert to fraction form
    1,868,122.11/2,802,185.90 = 520,288.59/x
  3. Step 3: Cross multiply
    1,868,122.11x = 2,802,185.90 × 520,288.59
  4. Step 4: Simplify right side
    1,868,122.11x = 1,457,945,348,227.44
  5. Step 5: Solve for x
    x = 1,457,945,348,227.44/1,868,122.11
  6. Step 6: Final answer
    x = 780,433.65

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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.