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Finding the Fourth Proportional to 901,690, 1,244,323.24 and 488,224.80

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Solution

The fourth proportional to 901,690, 1,244,323.24 and 488,224.80 is: 673,745.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,690 : 1,244,323.24 = 488,224.80 : x
  2. Step 2: Convert to fraction form
    901,690/1,244,323.24 = 488,224.80/x
  3. Step 3: Cross multiply
    901,690x = 1,244,323.24 × 488,224.80
  4. Step 4: Simplify right side
    901,690x = 607,509,464,984.35
  5. Step 5: Solve for x
    x = 607,509,464,984.35/901,690
  6. Step 6: Final answer
    x = 673,745.37

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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.