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Finding the Fourth Proportional to 503,395.22, 694,529.04 and 285,567.98

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Solution

The fourth proportional to 503,395.22, 694,529.04 and 285,567.98 is: 393,995.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,395.22 : 694,529.04 = 285,567.98 : x
  2. Step 2: Convert to fraction form
    503,395.22/694,529.04 = 285,567.98/x
  3. Step 3: Cross multiply
    503,395.22x = 694,529.04 × 285,567.98
  4. Step 4: Simplify right side
    503,395.22x = 198,335,255,004.14
  5. Step 5: Solve for x
    x = 198,335,255,004.14/503,395.22
  6. Step 6: Final answer
    x = 393,995.11

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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.