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Finding the Fourth Proportional to 404,522.08, 558,004.78 and 259,276.12

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Solution

The fourth proportional to 404,522.08, 558,004.78 and 259,276.12 is: 357,649.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,522.08 : 558,004.78 = 259,276.12 : x
  2. Step 2: Convert to fraction form
    404,522.08/558,004.78 = 259,276.12/x
  3. Step 3: Cross multiply
    404,522.08x = 558,004.78 × 259,276.12
  4. Step 4: Simplify right side
    404,522.08x = 144,677,314,299.85
  5. Step 5: Solve for x
    x = 144,677,314,299.85/404,522.08
  6. Step 6: Final answer
    x = 357,649.98

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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.