Home / 1,272,100.26-1,908,140.67-325,469.46

Finding the Fourth Proportional to 1,272,100.26, 1,908,140.67 and 325,469.46

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Solution

The fourth proportional to 1,272,100.26, 1,908,140.67 and 325,469.46 is: 488,201.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,100.26 : 1,908,140.67 = 325,469.46 : x
  2. Step 2: Convert to fraction form
    1,272,100.26/1,908,140.67 = 325,469.46/x
  3. Step 3: Cross multiply
    1,272,100.26x = 1,908,140.67 × 325,469.46
  4. Step 4: Simplify right side
    1,272,100.26x = 621,041,513,468.94
  5. Step 5: Solve for x
    x = 621,041,513,468.94/1,272,100.26
  6. Step 6: Final answer
    x = 488,201.70

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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.