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Finding the Fourth Proportional to 723,650.92, 997,984.58 and 451,743.93

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Solution

The fourth proportional to 723,650.92, 997,984.58 and 451,743.93 is: 622,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,650.92 : 997,984.58 = 451,743.93 : x
  2. Step 2: Convert to fraction form
    723,650.92/997,984.58 = 451,743.93/x
  3. Step 3: Cross multiply
    723,650.92x = 997,984.58 × 451,743.93
  4. Step 4: Simplify right side
    723,650.92x = 450,833,473,989.88
  5. Step 5: Solve for x
    x = 450,833,473,989.88/723,650.92
  6. Step 6: Final answer
    x = 622,998.55

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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.