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Finding the Fourth Proportional to 577,865.81, 797,439.47 and 319,736.03

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Solution

The fourth proportional to 577,865.81, 797,439.47 and 319,736.03 is: 441,227.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,865.81 : 797,439.47 = 319,736.03 : x
  2. Step 2: Convert to fraction form
    577,865.81/797,439.47 = 319,736.03/x
  3. Step 3: Cross multiply
    577,865.81x = 797,439.47 × 319,736.03
  4. Step 4: Simplify right side
    577,865.81x = 254,970,124,717.23
  5. Step 5: Solve for x
    x = 254,970,124,717.23/577,865.81
  6. Step 6: Final answer
    x = 441,227.22

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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.