Home / 1,121,430.14-1,682,063.80-438,188.56

Finding the Fourth Proportional to 1,121,430.14, 1,682,063.80 and 438,188.56

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Solution

The fourth proportional to 1,121,430.14, 1,682,063.80 and 438,188.56 is: 657,251.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,430.14 : 1,682,063.80 = 438,188.56 : x
  2. Step 2: Convert to fraction form
    1,121,430.14/1,682,063.80 = 438,188.56/x
  3. Step 3: Cross multiply
    1,121,430.14x = 1,682,063.80 × 438,188.56
  4. Step 4: Simplify right side
    1,121,430.14x = 737,061,114,350.13
  5. Step 5: Solve for x
    x = 737,061,114,350.13/1,121,430.14
  6. Step 6: Final answer
    x = 657,251.03

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.