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Finding the Fourth Proportional to 654,436.05, 902,818.62 and 382,515.40

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Solution

The fourth proportional to 654,436.05, 902,818.62 and 382,515.40 is: 527,694.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,436.05 : 902,818.62 = 382,515.40 : x
  2. Step 2: Convert to fraction form
    654,436.05/902,818.62 = 382,515.40/x
  3. Step 3: Cross multiply
    654,436.05x = 902,818.62 × 382,515.40
  4. Step 4: Simplify right side
    654,436.05x = 345,342,026,685.27
  5. Step 5: Solve for x
    x = 345,342,026,685.27/654,436.05
  6. Step 6: Final answer
    x = 527,694.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.