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Finding the Fourth Proportional to 395,316.37, 546,455.87 and 352,718

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Solution

The fourth proportional to 395,316.37, 546,455.87 and 352,718 is: 487,571.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,316.37 : 546,455.87 = 352,718 : x
  2. Step 2: Convert to fraction form
    395,316.37/546,455.87 = 352,718/x
  3. Step 3: Cross multiply
    395,316.37x = 546,455.87 × 352,718
  4. Step 4: Simplify right side
    395,316.37x = 192,744,821,554.66
  5. Step 5: Solve for x
    x = 192,744,821,554.66/395,316.37
  6. Step 6: Final answer
    x = 487,571.06

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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.