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Finding the Fourth Proportional to 723,992.48, 999,109.61 and 401,704.88

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Solution

The fourth proportional to 723,992.48, 999,109.61 and 401,704.88 is: 554,352.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,992.48 : 999,109.61 = 401,704.88 : x
  2. Step 2: Convert to fraction form
    723,992.48/999,109.61 = 401,704.88/x
  3. Step 3: Cross multiply
    723,992.48x = 999,109.61 × 401,704.88
  4. Step 4: Simplify right side
    723,992.48x = 401,347,198,987.82
  5. Step 5: Solve for x
    x = 401,347,198,987.82/723,992.48
  6. Step 6: Final answer
    x = 554,352.72

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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.