Home / 1,868,131.49-2,802,199.95-520,297.97

Finding the Fourth Proportional to 1,868,131.49, 2,802,199.95 and 520,297.97

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Solution

The fourth proportional to 1,868,131.49, 2,802,199.95 and 520,297.97 is: 780,447.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,131.49 : 2,802,199.95 = 520,297.97 : x
  2. Step 2: Convert to fraction form
    1,868,131.49/2,802,199.95 = 520,297.97/x
  3. Step 3: Cross multiply
    1,868,131.49x = 2,802,199.95 × 520,297.97
  4. Step 4: Simplify right side
    1,868,131.49x = 1,457,978,931,508.10
  5. Step 5: Solve for x
    x = 1,457,978,931,508.10/1,868,131.49
  6. Step 6: Final answer
    x = 780,447.71

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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.