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Finding the Fourth Proportional to 929,992, 1,395,000.96 and 265,144

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Solution

The fourth proportional to 929,992, 1,395,000.96 and 265,144 is: 397,719.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,992 : 1,395,000.96 = 265,144 : x
  2. Step 2: Convert to fraction form
    929,992/1,395,000.96 = 265,144/x
  3. Step 3: Cross multiply
    929,992x = 1,395,000.96 × 265,144
  4. Step 4: Simplify right side
    929,992x = 369,876,134,538.24
  5. Step 5: Solve for x
    x = 369,876,134,538.24/929,992
  6. Step 6: Final answer
    x = 397,719.69

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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.