Home / 646,115.22-891,639.04-359,629.16

Finding the Fourth Proportional to 646,115.22, 891,639.04 and 359,629.16

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Solution

The fourth proportional to 646,115.22, 891,639.04 and 359,629.16 is: 496,288.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,115.22 : 891,639.04 = 359,629.16 : x
  2. Step 2: Convert to fraction form
    646,115.22/891,639.04 = 359,629.16/x
  3. Step 3: Cross multiply
    646,115.22x = 891,639.04 × 359,629.16
  4. Step 4: Simplify right side
    646,115.22x = 320,659,398,978.41
  5. Step 5: Solve for x
    x = 320,659,398,978.41/646,115.22
  6. Step 6: Final answer
    x = 496,288.26

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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.