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Finding the Fourth Proportional to 454,820.40, 680,918.40 and 441,698.40

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Solution

The fourth proportional to 454,820.40, 680,918.40 and 441,698.40 is: 661,273.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,820.40 : 680,918.40 = 441,698.40 : x
  2. Step 2: Convert to fraction form
    454,820.40/680,918.40 = 441,698.40/x
  3. Step 3: Cross multiply
    454,820.40x = 680,918.40 × 441,698.40
  4. Step 4: Simplify right side
    454,820.40x = 300,760,567,810.56
  5. Step 5: Solve for x
    x = 300,760,567,810.56/454,820.40
  6. Step 6: Final answer
    x = 661,273.26

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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.