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Finding the Fourth Proportional to 577,284.33, 796,618.05 and 319,145.81

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Solution

The fourth proportional to 577,284.33, 796,618.05 and 319,145.81 is: 440,402.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,284.33 : 796,618.05 = 319,145.81 : x
  2. Step 2: Convert to fraction form
    577,284.33/796,618.05 = 319,145.81/x
  3. Step 3: Cross multiply
    577,284.33x = 796,618.05 × 319,145.81
  4. Step 4: Simplify right side
    577,284.33x = 254,237,308,844.78
  5. Step 5: Solve for x
    x = 254,237,308,844.78/577,284.33
  6. Step 6: Final answer
    x = 440,402.23

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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.