Home / 1,121,365.50-1,682,748.09-456,517.50

Finding the Fourth Proportional to 1,121,365.50, 1,682,748.09 and 456,517.50

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Solution

The fourth proportional to 1,121,365.50, 1,682,748.09 and 456,517.50 is: 685,061.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,365.50 : 1,682,748.09 = 456,517.50 : x
  2. Step 2: Convert to fraction form
    1,121,365.50/1,682,748.09 = 456,517.50/x
  3. Step 3: Cross multiply
    1,121,365.50x = 1,682,748.09 × 456,517.50
  4. Step 4: Simplify right side
    1,121,365.50x = 768,203,951,176.58
  5. Step 5: Solve for x
    x = 768,203,951,176.58/1,121,365.50
  6. Step 6: Final answer
    x = 685,061.16

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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.