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Finding the Fourth Proportional to 646,558.75, 892,278.75 and 360,078.83

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Solution

The fourth proportional to 646,558.75, 892,278.75 and 360,078.83 is: 496,924.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,558.75 : 892,278.75 = 360,078.83 : x
  2. Step 2: Convert to fraction form
    646,558.75/892,278.75 = 360,078.83/x
  3. Step 3: Cross multiply
    646,558.75x = 892,278.75 × 360,078.83
  4. Step 4: Simplify right side
    646,558.75x = 321,290,693,587.88
  5. Step 5: Solve for x
    x = 321,290,693,587.88/646,558.75
  6. Step 6: Final answer
    x = 496,924.21

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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.