Finding the Fourth Proportional to 885,764.70, 1,328,647.05 and 862,436.70
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Solution
The fourth proportional to 885,764.70, 1,328,647.05 and 862,436.70 is: 1,293,655.05
Step by Step Solution
- Step 1: Write the proportion equation
885,764.70 : 1,328,647.05 = 862,436.70 : x - Step 2: Convert to fraction form
885,764.70/1,328,647.05 = 862,436.70/x - Step 3: Cross multiply
885,764.70x = 1,328,647.05 × 862,436.70 - Step 4: Simplify right side
885,764.70x = 1,145,873,977,266.73 - Step 5: Solve for x
x = 1,145,873,977,266.73/885,764.70 - Step 6: Final answer
x = 1,293,655.05
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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.