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Finding the Fourth Proportional to 694,064.63, 957,802.52 and 388,137.56

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Solution

The fourth proportional to 694,064.63, 957,802.52 and 388,137.56 is: 535,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,064.63 : 957,802.52 = 388,137.56 : x
  2. Step 2: Convert to fraction form
    694,064.63/957,802.52 = 388,137.56/x
  3. Step 3: Cross multiply
    694,064.63x = 957,802.52 × 388,137.56
  4. Step 4: Simplify right side
    694,064.63x = 371,759,129,255.98
  5. Step 5: Solve for x
    x = 371,759,129,255.98/694,064.63
  6. Step 6: Final answer
    x = 535,626.10

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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.