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Finding the Fourth Proportional to 658,522.86, 908,765.91 and 356,716.86

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Solution

The fourth proportional to 658,522.86, 908,765.91 and 356,716.86 is: 492,271.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,522.86 : 908,765.91 = 356,716.86 : x
  2. Step 2: Convert to fraction form
    658,522.86/908,765.91 = 356,716.86/x
  3. Step 3: Cross multiply
    658,522.86x = 908,765.91 × 356,716.86
  4. Step 4: Simplify right side
    658,522.86x = 324,172,121,890.24
  5. Step 5: Solve for x
    x = 324,172,121,890.24/658,522.86
  6. Step 6: Final answer
    x = 492,271.63

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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.