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Finding the Fourth Proportional to 534,521.69, 737,651.81 and 305,074.34

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Solution

The fourth proportional to 534,521.69, 737,651.81 and 305,074.34 is: 421,009.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,521.69 : 737,651.81 = 305,074.34 : x
  2. Step 2: Convert to fraction form
    534,521.69/737,651.81 = 305,074.34/x
  3. Step 3: Cross multiply
    534,521.69x = 737,651.81 × 305,074.34
  4. Step 4: Simplify right side
    534,521.69x = 225,038,633,871.93
  5. Step 5: Solve for x
    x = 225,038,633,871.93/534,521.69
  6. Step 6: Final answer
    x = 421,009.36

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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.