Finding the Fourth Proportional to 403,454.80, 605,117.40 and 122,906.80
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Solution
The fourth proportional to 403,454.80, 605,117.40 and 122,906.80 is: 184,340.46
Step by Step Solution
- Step 1: Write the proportion equation
403,454.80 : 605,117.40 = 122,906.80 : x - Step 2: Convert to fraction form
403,454.80/605,117.40 = 122,906.80/x - Step 3: Cross multiply
403,454.80x = 605,117.40 × 122,906.80 - Step 4: Simplify right side
403,454.80x = 74,373,043,258.32 - Step 5: Solve for x
x = 74,373,043,258.32/403,454.80 - Step 6: Final answer
x = 184,340.46
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.