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Finding the Fourth Proportional to 602,477.65, 831,427.64 and 330,540.61

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Solution

The fourth proportional to 602,477.65, 831,427.64 and 330,540.61 is: 456,150.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,477.65 : 831,427.64 = 330,540.61 : x
  2. Step 2: Convert to fraction form
    602,477.65/831,427.64 = 330,540.61/x
  3. Step 3: Cross multiply
    602,477.65x = 831,427.64 × 330,540.61
  4. Step 4: Simplify right side
    602,477.65x = 274,820,597,105.08
  5. Step 5: Solve for x
    x = 274,820,597,105.08/602,477.65
  6. Step 6: Final answer
    x = 456,150.69

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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.