Finding the Fourth Proportional to 1,085,416.40, 1,628,202.34 and 286,689.98
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Solution
The fourth proportional to 1,085,416.40, 1,628,202.34 and 286,689.98 is: 430,055.50
Step by Step Solution
- Step 1: Write the proportion equation
1,085,416.40 : 1,628,202.34 = 286,689.98 : x - Step 2: Convert to fraction form
1,085,416.40/1,628,202.34 = 286,689.98/x - Step 3: Cross multiply
1,085,416.40x = 1,628,202.34 × 286,689.98 - Step 4: Simplify right side
1,085,416.40x = 466,789,296,290.55 - Step 5: Solve for x
x = 466,789,296,290.55/1,085,416.40 - Step 6: Final answer
x = 430,055.50
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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.