Finding the Fourth Proportional to 1,235,813.36, 1,705,026.12 and 691,869.20
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Solution
The fourth proportional to 1,235,813.36, 1,705,026.12 and 691,869.20 is: 954,557.62
Step by Step Solution
- Step 1: Write the proportion equation
1,235,813.36 : 1,705,026.12 = 691,869.20 : x - Step 2: Convert to fraction form
1,235,813.36/1,705,026.12 = 691,869.20/x - Step 3: Cross multiply
1,235,813.36x = 1,705,026.12 × 691,869.20 - Step 4: Simplify right side
1,235,813.36x = 1,179,655,057,623.50 - Step 5: Solve for x
x = 1,179,655,057,623.50/1,235,813.36 - Step 6: Final answer
x = 954,557.62
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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.