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Finding the Fourth Proportional to 571,662.74, 786,914.58 and 494,103.05

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Solution

The fourth proportional to 571,662.74, 786,914.58 and 494,103.05 is: 680,150.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,662.74 : 786,914.58 = 494,103.05 : x
  2. Step 2: Convert to fraction form
    571,662.74/786,914.58 = 494,103.05/x
  3. Step 3: Cross multiply
    571,662.74x = 786,914.58 × 494,103.05
  4. Step 4: Simplify right side
    571,662.74x = 388,816,890,132.90
  5. Step 5: Solve for x
    x = 388,816,890,132.90/571,662.74
  6. Step 6: Final answer
    x = 680,150.84

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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.