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Finding the Fourth Proportional to 559,405.80, 839,400.30 and 243,894.60

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Solution

The fourth proportional to 559,405.80, 839,400.30 and 243,894.60 is: 365,969.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,405.80 : 839,400.30 = 243,894.60 : x
  2. Step 2: Convert to fraction form
    559,405.80/839,400.30 = 243,894.60/x
  3. Step 3: Cross multiply
    559,405.80x = 839,400.30 × 243,894.60
  4. Step 4: Simplify right side
    559,405.80x = 204,725,200,408.38
  5. Step 5: Solve for x
    x = 204,725,200,408.38/559,405.80
  6. Step 6: Final answer
    x = 365,969.03

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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.