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Finding the Fourth Proportional to 602,717.53, 831,780.36 and 330,783.04

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Solution

The fourth proportional to 602,717.53, 831,780.36 and 330,783.04 is: 456,497.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,717.53 : 831,780.36 = 330,783.04 : x
  2. Step 2: Convert to fraction form
    602,717.53/831,780.36 = 330,783.04/x
  3. Step 3: Cross multiply
    602,717.53x = 831,780.36 × 330,783.04
  4. Step 4: Simplify right side
    602,717.53x = 275,138,836,093.09
  5. Step 5: Solve for x
    x = 275,138,836,093.09/602,717.53
  6. Step 6: Final answer
    x = 456,497.15

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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.