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Finding the Fourth Proportional to 602,618.69, 831,611.52 and 330,691.16

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Solution

The fourth proportional to 602,618.69, 831,611.52 and 330,691.16 is: 456,352.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,618.69 : 831,611.52 = 330,691.16 : x
  2. Step 2: Convert to fraction form
    602,618.69/831,611.52 = 330,691.16/x
  3. Step 3: Cross multiply
    602,618.69x = 831,611.52 × 330,691.16
  4. Step 4: Simplify right side
    602,618.69x = 275,006,574,060.11
  5. Step 5: Solve for x
    x = 275,006,574,060.11/602,618.69
  6. Step 6: Final answer
    x = 456,352.55

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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.