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Finding the Fourth Proportional to 693,389.63, 956,859.37 and 387,468.52

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Solution

The fourth proportional to 693,389.63, 956,859.37 and 387,468.52 is: 534,696.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,389.63 : 956,859.37 = 387,468.52 : x
  2. Step 2: Convert to fraction form
    693,389.63/956,859.37 = 387,468.52/x
  3. Step 3: Cross multiply
    693,389.63x = 956,859.37 × 387,468.52
  4. Step 4: Simplify right side
    693,389.63x = 370,752,886,764.25
  5. Step 5: Solve for x
    x = 370,752,886,764.25/693,389.63
  6. Step 6: Final answer
    x = 534,696.33

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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.