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Finding the Fourth Proportional to 440,485.42, 660,055.54 and 327,619.81

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Solution

The fourth proportional to 440,485.42, 660,055.54 and 327,619.81 is: 490,929.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,485.42 : 660,055.54 = 327,619.81 : x
  2. Step 2: Convert to fraction form
    440,485.42/660,055.54 = 327,619.81/x
  3. Step 3: Cross multiply
    440,485.42x = 660,055.54 × 327,619.81
  4. Step 4: Simplify right side
    440,485.42x = 216,247,270,604.25
  5. Step 5: Solve for x
    x = 216,247,270,604.25/440,485.42
  6. Step 6: Final answer
    x = 490,929.47

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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.