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Finding the Fourth Proportional to 567,496.45, 783,121.26 and 309,367.81

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Solution

The fourth proportional to 567,496.45, 783,121.26 and 309,367.81 is: 426,914.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,496.45 : 783,121.26 = 309,367.81 : x
  2. Step 2: Convert to fraction form
    567,496.45/783,121.26 = 309,367.81/x
  3. Step 3: Cross multiply
    567,496.45x = 783,121.26 × 309,367.81
  4. Step 4: Simplify right side
    567,496.45x = 242,272,509,170.64
  5. Step 5: Solve for x
    x = 242,272,509,170.64/567,496.45
  6. Step 6: Final answer
    x = 426,914.58

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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.