Finding the Fourth Proportional to 813,162.24, 1,122,203.16 and 490,866.48
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Solution
The fourth proportional to 813,162.24, 1,122,203.16 and 490,866.48 is: 677,419.45
Step by Step Solution
- Step 1: Write the proportion equation
813,162.24 : 1,122,203.16 = 490,866.48 : x - Step 2: Convert to fraction form
813,162.24/1,122,203.16 = 490,866.48/x - Step 3: Cross multiply
813,162.24x = 1,122,203.16 × 490,866.48 - Step 4: Simplify right side
813,162.24x = 550,851,914,994.08 - Step 5: Solve for x
x = 550,851,914,994.08/813,162.24 - Step 6: Final answer
x = 677,419.45
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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.