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Finding the Fourth Proportional to 538,277.27, 742,668.50 and 320,303.77

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Solution

The fourth proportional to 538,277.27, 742,668.50 and 320,303.77 is: 441,927.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,277.27 : 742,668.50 = 320,303.77 : x
  2. Step 2: Convert to fraction form
    538,277.27/742,668.50 = 320,303.77/x
  3. Step 3: Cross multiply
    538,277.27x = 742,668.50 × 320,303.77
  4. Step 4: Simplify right side
    538,277.27x = 237,879,517,552.62
  5. Step 5: Solve for x
    x = 237,879,517,552.62/538,277.27
  6. Step 6: Final answer
    x = 441,927.48

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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.