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Finding the Fourth Proportional to 661,524.41, 992,614.64 and 262,156.34

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Solution

The fourth proportional to 661,524.41, 992,614.64 and 262,156.34 is: 393,364.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,524.41 : 992,614.64 = 262,156.34 : x
  2. Step 2: Convert to fraction form
    661,524.41/992,614.64 = 262,156.34/x
  3. Step 3: Cross multiply
    661,524.41x = 992,614.64 × 262,156.34
  4. Step 4: Simplify right side
    661,524.41x = 260,220,214,778.96
  5. Step 5: Solve for x
    x = 260,220,214,778.96/661,524.41
  6. Step 6: Final answer
    x = 393,364.50

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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.