Home / 1,079,301.20-1,618,669.60-320,938.40

Finding the Fourth Proportional to 1,079,301.20, 1,618,669.60 and 320,938.40

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Solution

The fourth proportional to 1,079,301.20, 1,618,669.60 and 320,938.40 is: 481,323.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,301.20 : 1,618,669.60 = 320,938.40 : x
  2. Step 2: Convert to fraction form
    1,079,301.20/1,618,669.60 = 320,938.40/x
  3. Step 3: Cross multiply
    1,079,301.20x = 1,618,669.60 × 320,938.40
  4. Step 4: Simplify right side
    1,079,301.20x = 519,493,231,552.64
  5. Step 5: Solve for x
    x = 519,493,231,552.64/1,079,301.20
  6. Step 6: Final answer
    x = 481,323.69

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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.