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Finding the Fourth Proportional to 577,529.21, 796,983.21 and 319,401.44

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Solution

The fourth proportional to 577,529.21, 796,983.21 and 319,401.44 is: 440,770.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,529.21 : 796,983.21 = 319,401.44 : x
  2. Step 2: Convert to fraction form
    577,529.21/796,983.21 = 319,401.44/x
  3. Step 3: Cross multiply
    577,529.21x = 796,983.21 × 319,401.44
  4. Step 4: Simplify right side
    577,529.21x = 254,557,584,492.89
  5. Step 5: Solve for x
    x = 254,557,584,492.89/577,529.21
  6. Step 6: Final answer
    x = 440,770.06

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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.