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Finding the Fourth Proportional to 791,992.72, 1,092,999.72 and 434,296.72

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Solution

The fourth proportional to 791,992.72, 1,092,999.72 and 434,296.72 is: 599,356.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,992.72 : 1,092,999.72 = 434,296.72 : x
  2. Step 2: Convert to fraction form
    791,992.72/1,092,999.72 = 434,296.72/x
  3. Step 3: Cross multiply
    791,992.72x = 1,092,999.72 × 434,296.72
  4. Step 4: Simplify right side
    791,992.72x = 474,686,193,356.92
  5. Step 5: Solve for x
    x = 474,686,193,356.92/791,992.72
  6. Step 6: Final answer
    x = 599,356.76

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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.