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Finding the Fourth Proportional to 867,993.82, 1,197,880.86 and 486,017.26

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Solution

The fourth proportional to 867,993.82, 1,197,880.86 and 486,017.26 is: 670,731.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,993.82 : 1,197,880.86 = 486,017.26 : x
  2. Step 2: Convert to fraction form
    867,993.82/1,197,880.86 = 486,017.26/x
  3. Step 3: Cross multiply
    867,993.82x = 1,197,880.86 × 486,017.26
  4. Step 4: Simplify right side
    867,993.82x = 582,190,773,383.64
  5. Step 5: Solve for x
    x = 582,190,773,383.64/867,993.82
  6. Step 6: Final answer
    x = 670,731.47

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Double scale
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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.