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Finding the Fourth Proportional to 1,808,749.06, 2,711,059.69 and 728,569.86

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Solution

The fourth proportional to 1,808,749.06, 2,711,059.69 and 728,569.86 is: 1,092,023.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808,749.06 : 2,711,059.69 = 728,569.86 : x
  2. Step 2: Convert to fraction form
    1,808,749.06/2,711,059.69 = 728,569.86/x
  3. Step 3: Cross multiply
    1,808,749.06x = 2,711,059.69 × 728,569.86
  4. Step 4: Simplify right side
    1,808,749.06x = 1,975,196,378,794.94
  5. Step 5: Solve for x
    x = 1,975,196,378,794.94/1,808,749.06
  6. Step 6: Final answer
    x = 1,092,023.44

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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.