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Finding the Fourth Proportional to 902,978.15, 1,354,606.80 and 303,892.33

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Solution

The fourth proportional to 902,978.15, 1,354,606.80 and 303,892.33 is: 455,885.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,978.15 : 1,354,606.80 = 303,892.33 : x
  2. Step 2: Convert to fraction form
    902,978.15/1,354,606.80 = 303,892.33/x
  3. Step 3: Cross multiply
    902,978.15x = 1,354,606.80 × 303,892.33
  4. Step 4: Simplify right side
    902,978.15x = 411,654,616,685.84
  5. Step 5: Solve for x
    x = 411,654,616,685.84/902,978.15
  6. Step 6: Final answer
    x = 455,885.47

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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.