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Finding the Fourth Proportional to 869,602.73, 1,304,493.47 and 300,982.90

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Solution

The fourth proportional to 869,602.73, 1,304,493.47 and 300,982.90 is: 451,505.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,602.73 : 1,304,493.47 = 300,982.90 : x
  2. Step 2: Convert to fraction form
    869,602.73/1,304,493.47 = 300,982.90/x
  3. Step 3: Cross multiply
    869,602.73x = 1,304,493.47 × 300,982.90
  4. Step 4: Simplify right side
    869,602.73x = 392,630,227,631.66
  5. Step 5: Solve for x
    x = 392,630,227,631.66/869,602.73
  6. Step 6: Final answer
    x = 451,505.28

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1.5x scale

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.