Home / 646,190.26-891,735.02-355,795.79

Finding the Fourth Proportional to 646,190.26, 891,735.02 and 355,795.79

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Solution

The fourth proportional to 646,190.26, 891,735.02 and 355,795.79 is: 490,994.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,190.26 : 891,735.02 = 355,795.79 : x
  2. Step 2: Convert to fraction form
    646,190.26/891,735.02 = 355,795.79/x
  3. Step 3: Cross multiply
    646,190.26x = 891,735.02 × 355,795.79
  4. Step 4: Simplify right side
    646,190.26x = 317,275,568,025.51
  5. Step 5: Solve for x
    x = 317,275,568,025.51/646,190.26
  6. Step 6: Final answer
    x = 490,994.04

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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.