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Finding the Fourth Proportional to 444,007.12, 612,802.19 and 330,042.55

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Solution

The fourth proportional to 444,007.12, 612,802.19 and 330,042.55 is: 455,512.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,007.12 : 612,802.19 = 330,042.55 : x
  2. Step 2: Convert to fraction form
    444,007.12/612,802.19 = 330,042.55/x
  3. Step 3: Cross multiply
    444,007.12x = 612,802.19 × 330,042.55
  4. Step 4: Simplify right side
    444,007.12x = 202,250,797,433.18
  5. Step 5: Solve for x
    x = 202,250,797,433.18/444,007.12
  6. Step 6: Final answer
    x = 455,512.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.