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Finding the Fourth Proportional to 658,872.21, 908,564.81 and 563,693.97

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Solution

The fourth proportional to 658,872.21, 908,564.81 and 563,693.97 is: 777,316.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,872.21 : 908,564.81 = 563,693.97 : x
  2. Step 2: Convert to fraction form
    658,872.21/908,564.81 = 563,693.97/x
  3. Step 3: Cross multiply
    658,872.21x = 908,564.81 × 563,693.97
  4. Step 4: Simplify right side
    658,872.21x = 512,152,501,932.73
  5. Step 5: Solve for x
    x = 512,152,501,932.73/658,872.21
  6. Step 6: Final answer
    x = 777,316.90

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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.