Home / 1,487,185.38-2,052,321.21-808,121.70

Finding the Fourth Proportional to 1,487,185.38, 2,052,321.21 and 808,121.70

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Solution

The fourth proportional to 1,487,185.38, 2,052,321.21 and 808,121.70 is: 1,115,210.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,185.38 : 2,052,321.21 = 808,121.70 : x
  2. Step 2: Convert to fraction form
    1,487,185.38/2,052,321.21 = 808,121.70/x
  3. Step 3: Cross multiply
    1,487,185.38x = 2,052,321.21 × 808,121.70
  4. Step 4: Simplify right side
    1,487,185.38x = 1,658,525,305,171.26
  5. Step 5: Solve for x
    x = 1,658,525,305,171.26/1,487,185.38
  6. Step 6: Final answer
    x = 1,115,210.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.