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Finding the Fourth Proportional to 577,385.75, 796,722.79 and 319,227.83

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Solution

The fourth proportional to 577,385.75, 796,722.79 and 319,227.83 is: 440,495.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,385.75 : 796,722.79 = 319,227.83 : x
  2. Step 2: Convert to fraction form
    577,385.75/796,722.79 = 319,227.83/x
  3. Step 3: Cross multiply
    577,385.75x = 796,722.79 × 319,227.83
  4. Step 4: Simplify right side
    577,385.75x = 254,336,087,363.25
  5. Step 5: Solve for x
    x = 254,336,087,363.25/577,385.75
  6. Step 6: Final answer
    x = 440,495.96

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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.