Home / 1,412,317.20-1,948,523.28-800,421.88

Finding the Fourth Proportional to 1,412,317.20, 1,948,523.28 and 800,421.88

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Solution

The fourth proportional to 1,412,317.20, 1,948,523.28 and 800,421.88 is: 1,104,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,317.20 : 1,948,523.28 = 800,421.88 : x
  2. Step 2: Convert to fraction form
    1,412,317.20/1,948,523.28 = 800,421.88/x
  3. Step 3: Cross multiply
    1,412,317.20x = 1,948,523.28 × 800,421.88
  4. Step 4: Simplify right side
    1,412,317.20x = 1,559,640,667,001.37
  5. Step 5: Solve for x
    x = 1,559,640,667,001.37/1,412,317.20
  6. Step 6: Final answer
    x = 1,104,313.30

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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.