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Finding the Fourth Proportional to 872,955.72, 1,309,488.94 and 273,940.52

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Solution

The fourth proportional to 872,955.72, 1,309,488.94 and 273,940.52 is: 410,928.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,955.72 : 1,309,488.94 = 273,940.52 : x
  2. Step 2: Convert to fraction form
    872,955.72/1,309,488.94 = 273,940.52/x
  3. Step 3: Cross multiply
    872,955.72x = 1,309,488.94 × 273,940.52
  4. Step 4: Simplify right side
    872,955.72x = 358,722,081,157.85
  5. Step 5: Solve for x
    x = 358,722,081,157.85/872,955.72
  6. Step 6: Final answer
    x = 410,928.15

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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.