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Finding the Fourth Proportional to 599,991.20, 901,023.60 and 320,055.20

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Solution

The fourth proportional to 599,991.20, 901,023.60 and 320,055.20 is: 480,635.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,991.20 : 901,023.60 = 320,055.20 : x
  2. Step 2: Convert to fraction form
    599,991.20/901,023.60 = 320,055.20/x
  3. Step 3: Cross multiply
    599,991.20x = 901,023.60 × 320,055.20
  4. Step 4: Simplify right side
    599,991.20x = 288,377,288,502.72
  5. Step 5: Solve for x
    x = 288,377,288,502.72/599,991.20
  6. Step 6: Final answer
    x = 480,635.86

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1.5x scale

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.