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Finding the Fourth Proportional to 395,809.60, 592,839.60 and 325,825.60

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Solution

The fourth proportional to 395,809.60, 592,839.60 and 325,825.60 is: 488,018.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,809.60 : 592,839.60 = 325,825.60 : x
  2. Step 2: Convert to fraction form
    395,809.60/592,839.60 = 325,825.60/x
  3. Step 3: Cross multiply
    395,809.60x = 592,839.60 × 325,825.60
  4. Step 4: Simplify right side
    395,809.60x = 193,162,318,373.76
  5. Step 5: Solve for x
    x = 193,162,318,373.76/395,809.60
  6. Step 6: Final answer
    x = 488,018.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.