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Finding the Fourth Proportional to 577,395.30, 796,735.96 and 319,237.37

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Solution

The fourth proportional to 577,395.30, 796,735.96 and 319,237.37 is: 440,509.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,395.30 : 796,735.96 = 319,237.37 : x
  2. Step 2: Convert to fraction form
    577,395.30/796,735.96 = 319,237.37/x
  3. Step 3: Cross multiply
    577,395.30x = 796,735.96 × 319,237.37
  4. Step 4: Simplify right side
    577,395.30x = 254,347,892,454.83
  5. Step 5: Solve for x
    x = 254,347,892,454.83/577,395.30
  6. Step 6: Final answer
    x = 440,509.11

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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.