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Finding the Fourth Proportional to 611,841.03, 915,796.32 and 326,818.89

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Solution

The fourth proportional to 611,841.03, 915,796.32 and 326,818.89 is: 489,178.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,841.03 : 915,796.32 = 326,818.89 : x
  2. Step 2: Convert to fraction form
    611,841.03/915,796.32 = 326,818.89/x
  3. Step 3: Cross multiply
    611,841.03x = 915,796.32 × 326,818.89
  4. Step 4: Simplify right side
    611,841.03x = 299,299,535,542.91
  5. Step 5: Solve for x
    x = 299,299,535,542.91/611,841.03
  6. Step 6: Final answer
    x = 489,178.60

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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.