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Finding the Fourth Proportional to 662,732.60, 994,617.30 and 307,790.60

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Solution

The fourth proportional to 662,732.60, 994,617.30 and 307,790.60 is: 461,926.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,732.60 : 994,617.30 = 307,790.60 : x
  2. Step 2: Convert to fraction form
    662,732.60/994,617.30 = 307,790.60/x
  3. Step 3: Cross multiply
    662,732.60x = 994,617.30 × 307,790.60
  4. Step 4: Simplify right side
    662,732.60x = 306,133,855,537.38
  5. Step 5: Solve for x
    x = 306,133,855,537.38/662,732.60
  6. Step 6: Final answer
    x = 461,926.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.