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Finding the Fourth Proportional to 482,584.28, 665,689.61 and 300,980.93

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Solution

The fourth proportional to 482,584.28, 665,689.61 and 300,980.93 is: 415,181.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,584.28 : 665,689.61 = 300,980.93 : x
  2. Step 2: Convert to fraction form
    482,584.28/665,689.61 = 300,980.93/x
  3. Step 3: Cross multiply
    482,584.28x = 665,689.61 × 300,980.93
  4. Step 4: Simplify right side
    482,584.28x = 200,359,875,333.14
  5. Step 5: Solve for x
    x = 200,359,875,333.14/482,584.28
  6. Step 6: Final answer
    x = 415,181.11

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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.