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Finding the Fourth Proportional to 577,000.58, 796,219.10 and 318,874.43

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Solution

The fourth proportional to 577,000.58, 796,219.10 and 318,874.43 is: 440,023.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,000.58 : 796,219.10 = 318,874.43 : x
  2. Step 2: Convert to fraction form
    577,000.58/796,219.10 = 318,874.43/x
  3. Step 3: Cross multiply
    577,000.58x = 796,219.10 × 318,874.43
  4. Step 4: Simplify right side
    577,000.58x = 253,893,912,063.79
  5. Step 5: Solve for x
    x = 253,893,912,063.79/577,000.58
  6. Step 6: Final answer
    x = 440,023.67

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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.