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Finding the Fourth Proportional to 500,043.25, 690,059.73 and 273,688.75

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Solution

The fourth proportional to 500,043.25, 690,059.73 and 273,688.75 is: 377,690.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,043.25 : 690,059.73 = 273,688.75 : x
  2. Step 2: Convert to fraction form
    500,043.25/690,059.73 = 273,688.75/x
  3. Step 3: Cross multiply
    500,043.25x = 690,059.73 × 273,688.75
  4. Step 4: Simplify right side
    500,043.25x = 188,861,584,929.04
  5. Step 5: Solve for x
    x = 188,861,584,929.04/500,043.25
  6. Step 6: Final answer
    x = 377,690.50

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1.5x scale

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.