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Finding the Fourth Proportional to 658,619.96, 908,896.48 and 356,813.96

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Solution

The fourth proportional to 658,619.96, 908,896.48 and 356,813.96 is: 492,403.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,619.96 : 908,896.48 = 356,813.96 : x
  2. Step 2: Convert to fraction form
    658,619.96/908,896.48 = 356,813.96/x
  3. Step 3: Cross multiply
    658,619.96x = 908,896.48 × 356,813.96
  4. Step 4: Simplify right side
    658,619.96x = 324,306,952,258.86
  5. Step 5: Solve for x
    x = 324,306,952,258.86/658,619.96
  6. Step 6: Final answer
    x = 492,403.77

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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.