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Finding the Fourth Proportional to 441,370.77, 661,220.52 and 260,915.93

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Solution

The fourth proportional to 441,370.77, 661,220.52 and 260,915.93 is: 390,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,370.77 : 661,220.52 = 260,915.93 : x
  2. Step 2: Convert to fraction form
    441,370.77/661,220.52 = 260,915.93/x
  3. Step 3: Cross multiply
    441,370.77x = 661,220.52 × 260,915.93
  4. Step 4: Simplify right side
    441,370.77x = 172,522,966,910.88
  5. Step 5: Solve for x
    x = 172,522,966,910.88/441,370.77
  6. Step 6: Final answer
    x = 390,879.91

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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.