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Finding the Fourth Proportional to 856,803.60, 1,284,330.60 and 501,634.80

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Solution

The fourth proportional to 856,803.60, 1,284,330.60 and 501,634.80 is: 751,940.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,803.60 : 1,284,330.60 = 501,634.80 : x
  2. Step 2: Convert to fraction form
    856,803.60/1,284,330.60 = 501,634.80/x
  3. Step 3: Cross multiply
    856,803.60x = 1,284,330.60 × 501,634.80
  4. Step 4: Simplify right side
    856,803.60x = 644,264,923,664.88
  5. Step 5: Solve for x
    x = 644,264,923,664.88/856,803.60
  6. Step 6: Final answer
    x = 751,940.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.