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Finding the Fourth Proportional to 611,782.92, 844,360.74 and 353,668.32

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Solution

The fourth proportional to 611,782.92, 844,360.74 and 353,668.32 is: 488,120.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,782.92 : 844,360.74 = 353,668.32 : x
  2. Step 2: Convert to fraction form
    611,782.92/844,360.74 = 353,668.32/x
  3. Step 3: Cross multiply
    611,782.92x = 844,360.74 × 353,668.32
  4. Step 4: Simplify right side
    611,782.92x = 298,623,644,389.76
  5. Step 5: Solve for x
    x = 298,623,644,389.76/611,782.92
  6. Step 6: Final answer
    x = 488,120.27

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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.