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Finding the Fourth Proportional to 652,215.30, 900,066.42 and 394,056.42

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Solution

The fourth proportional to 652,215.30, 900,066.42 and 394,056.42 is: 543,803.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,215.30 : 900,066.42 = 394,056.42 : x
  2. Step 2: Convert to fraction form
    652,215.30/900,066.42 = 394,056.42/x
  3. Step 3: Cross multiply
    652,215.30x = 900,066.42 × 394,056.42
  4. Step 4: Simplify right side
    652,215.30x = 354,676,951,227.42
  5. Step 5: Solve for x
    x = 354,676,951,227.42/652,215.30
  6. Step 6: Final answer
    x = 543,803.48

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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.