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Finding the Fourth Proportional to 494,818.72, 742,178.86 and 228,575.39

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Solution

The fourth proportional to 494,818.72, 742,178.86 and 228,575.39 is: 342,840.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,818.72 : 742,178.86 = 228,575.39 : x
  2. Step 2: Convert to fraction form
    494,818.72/742,178.86 = 228,575.39/x
  3. Step 3: Cross multiply
    494,818.72x = 742,178.86 × 228,575.39
  4. Step 4: Simplify right side
    494,818.72x = 169,643,818,091.92
  5. Step 5: Solve for x
    x = 169,643,818,091.92/494,818.72
  6. Step 6: Final answer
    x = 342,840.34

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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.