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Finding the Fourth Proportional to 602,685.31, 831,703.11 and 330,757.61

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Solution

The fourth proportional to 602,685.31, 831,703.11 and 330,757.61 is: 456,444.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,685.31 : 831,703.11 = 330,757.61 : x
  2. Step 2: Convert to fraction form
    602,685.31/831,703.11 = 330,757.61/x
  3. Step 3: Cross multiply
    602,685.31x = 831,703.11 × 330,757.61
  4. Step 4: Simplify right side
    602,685.31x = 275,092,132,893.17
  5. Step 5: Solve for x
    x = 275,092,132,893.17/602,685.31
  6. Step 6: Final answer
    x = 456,444.07

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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.