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Finding the Fourth Proportional to 577,085.45, 796,353.17 and 318,949.07

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Solution

The fourth proportional to 577,085.45, 796,353.17 and 318,949.07 is: 440,136.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,085.45 : 796,353.17 = 318,949.07 : x
  2. Step 2: Convert to fraction form
    577,085.45/796,353.17 = 318,949.07/x
  3. Step 3: Cross multiply
    577,085.45x = 796,353.17 × 318,949.07
  4. Step 4: Simplify right side
    577,085.45x = 253,996,097,386.54
  5. Step 5: Solve for x
    x = 253,996,097,386.54/577,085.45
  6. Step 6: Final answer
    x = 440,136.03

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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.