Finding the Fourth Proportional to 1,500,528.64, 2,070,729.44 and 821,465.12
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Solution
The fourth proportional to 1,500,528.64, 2,070,729.44 and 821,465.12 is: 1,133,621.82
Step by Step Solution
- Step 1: Write the proportion equation
1,500,528.64 : 2,070,729.44 = 821,465.12 : x - Step 2: Convert to fraction form
1,500,528.64/2,070,729.44 = 821,465.12/x - Step 3: Cross multiply
1,500,528.64x = 2,070,729.44 × 821,465.12 - Step 4: Simplify right side
1,500,528.64x = 1,701,032,007,917.13 - Step 5: Solve for x
x = 1,701,032,007,917.13/1,500,528.64 - Step 6: Final answer
x = 1,133,621.82
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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.