Home / 1,868,286.40-2,802,040.80-520,100.80

Finding the Fourth Proportional to 1,868,286.40, 2,802,040.80 and 520,100.80

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Solution

The fourth proportional to 1,868,286.40, 2,802,040.80 and 520,100.80 is: 780,042.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,286.40 : 2,802,040.80 = 520,100.80 : x
  2. Step 2: Convert to fraction form
    1,868,286.40/2,802,040.80 = 520,100.80/x
  3. Step 3: Cross multiply
    1,868,286.40x = 2,802,040.80 × 520,100.80
  4. Step 4: Simplify right side
    1,868,286.40x = 1,457,343,661,712.64
  5. Step 5: Solve for x
    x = 1,457,343,661,712.64/1,868,286.40
  6. Step 6: Final answer
    x = 780,042.96

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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.