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Finding the Fourth Proportional to 441,020.88, 660,696.58 and 260,566.64

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Solution

The fourth proportional to 441,020.88, 660,696.58 and 260,566.64 is: 390,356.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,020.88 : 660,696.58 = 260,566.64 : x
  2. Step 2: Convert to fraction form
    441,020.88/660,696.58 = 260,566.64/x
  3. Step 3: Cross multiply
    441,020.88x = 660,696.58 × 260,566.64
  4. Step 4: Simplify right side
    441,020.88x = 172,155,487,910.09
  5. Step 5: Solve for x
    x = 172,155,487,910.09/441,020.88
  6. Step 6: Final answer
    x = 390,356.77

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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.