Home / 1,079,284.46-1,618,644.60-320,921.69

Finding the Fourth Proportional to 1,079,284.46, 1,618,644.60 and 320,921.69

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Solution

The fourth proportional to 1,079,284.46, 1,618,644.60 and 320,921.69 is: 481,298.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,284.46 : 1,618,644.60 = 320,921.69 : x
  2. Step 2: Convert to fraction form
    1,079,284.46/1,618,644.60 = 320,921.69/x
  3. Step 3: Cross multiply
    1,079,284.46x = 1,618,644.60 × 320,921.69
  4. Step 4: Simplify right side
    1,079,284.46x = 519,458,152,448.15
  5. Step 5: Solve for x
    x = 519,458,152,448.15/1,079,284.46
  6. Step 6: Final answer
    x = 481,298.65

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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.