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Finding the Fourth Proportional to 611,780.92, 844,357.98 and 353,666.32

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Solution

The fourth proportional to 611,780.92, 844,357.98 and 353,666.32 is: 488,117.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,780.92 : 844,357.98 = 353,666.32 : x
  2. Step 2: Convert to fraction form
    611,780.92/844,357.98 = 353,666.32/x
  3. Step 3: Cross multiply
    611,780.92x = 844,357.98 × 353,666.32
  4. Step 4: Simplify right side
    611,780.92x = 298,620,979,549.23
  5. Step 5: Solve for x
    x = 298,620,979,549.23/611,780.92
  6. Step 6: Final answer
    x = 488,117.51

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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.