Finding the Fourth Proportional to 1,296,202.15, 1,788,260.07 and 811,924.21
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Solution
The fourth proportional to 1,296,202.15, 1,788,260.07 and 811,924.21 is: 1,120,142.91
Step by Step Solution
- Step 1: Write the proportion equation
1,296,202.15 : 1,788,260.07 = 811,924.21 : x - Step 2: Convert to fraction form
1,296,202.15/1,788,260.07 = 811,924.21/x - Step 3: Cross multiply
1,296,202.15x = 1,788,260.07 × 811,924.21 - Step 4: Simplify right side
1,296,202.15x = 1,451,931,646,844.62 - Step 5: Solve for x
x = 1,451,931,646,844.62/1,296,202.15 - Step 6: Final answer
x = 1,120,142.91
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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.