Home / 1,412,311.16-1,948,515.04-800,415.90

Finding the Fourth Proportional to 1,412,311.16, 1,948,515.04 and 800,415.90

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Solution

The fourth proportional to 1,412,311.16, 1,948,515.04 and 800,415.90 is: 1,104,305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,311.16 : 1,948,515.04 = 800,415.90 : x
  2. Step 2: Convert to fraction form
    1,412,311.16/1,948,515.04 = 800,415.90/x
  3. Step 3: Cross multiply
    1,412,311.16x = 1,948,515.04 × 800,415.90
  4. Step 4: Simplify right side
    1,412,311.16x = 1,559,622,419,405.14
  5. Step 5: Solve for x
    x = 1,559,622,419,405.14/1,412,311.16
  6. Step 6: Final answer
    x = 1,104,305.10

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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.