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Finding the Fourth Proportional to 577,071.37, 796,399.69 and 318,942.77

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Solution

The fourth proportional to 577,071.37, 796,399.69 and 318,942.77 is: 440,163.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,071.37 : 796,399.69 = 318,942.77 : x
  2. Step 2: Convert to fraction form
    577,071.37/796,399.69 = 318,942.77/x
  3. Step 3: Cross multiply
    577,071.37x = 796,399.69 × 318,942.77
  4. Step 4: Simplify right side
    577,071.37x = 254,005,920,432.07
  5. Step 5: Solve for x
    x = 254,005,920,432.07/577,071.37
  6. Step 6: Final answer
    x = 440,163.79

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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.