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Finding the Fourth Proportional to 577,408.42, 796,788.92 and 319,269.92

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Solution

The fourth proportional to 577,408.42, 796,788.92 and 319,269.92 is: 440,573.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,408.42 : 796,788.92 = 319,269.92 : x
  2. Step 2: Convert to fraction form
    577,408.42/796,788.92 = 319,269.92/x
  3. Step 3: Cross multiply
    577,408.42x = 796,788.92 × 319,269.92
  4. Step 4: Simplify right side
    577,408.42x = 254,390,733,148.94
  5. Step 5: Solve for x
    x = 254,390,733,148.94/577,408.42
  6. Step 6: Final answer
    x = 440,573.30

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1.5x scale

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.