Home / 1,119,375.09-1,678,568.54-320,475.33

Finding the Fourth Proportional to 1,119,375.09, 1,678,568.54 and 320,475.33

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Solution

The fourth proportional to 1,119,375.09, 1,678,568.54 and 320,475.33 is: 480,571.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,375.09 : 1,678,568.54 = 320,475.33 : x
  2. Step 2: Convert to fraction form
    1,119,375.09/1,678,568.54 = 320,475.33/x
  3. Step 3: Cross multiply
    1,119,375.09x = 1,678,568.54 × 320,475.33
  4. Step 4: Simplify right side
    1,119,375.09x = 537,939,805,181.74
  5. Step 5: Solve for x
    x = 537,939,805,181.74/1,119,375.09
  6. Step 6: Final answer
    x = 480,571.53

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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.