Finding the Fourth Proportional to 620,675.44, 856,533.12 and 352,403.44
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Solution
The fourth proportional to 620,675.44, 856,533.12 and 352,403.44 is: 486,317.32
Step by Step Solution
- Step 1: Write the proportion equation
620,675.44 : 856,533.12 = 352,403.44 : x - Step 2: Convert to fraction form
620,675.44/856,533.12 = 352,403.44/x - Step 3: Cross multiply
620,675.44x = 856,533.12 × 352,403.44 - Step 4: Simplify right side
620,675.44x = 301,845,217,961.93 - Step 5: Solve for x
x = 301,845,217,961.93/620,675.44 - Step 6: Final answer
x = 486,317.32
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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.