Finding the Fourth Proportional to 981,331.49, 1,471,623.62 and 644,281.98
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Solution
The fourth proportional to 981,331.49, 1,471,623.62 and 644,281.98 is: 966,177.68
Step by Step Solution
- Step 1: Write the proportion equation
981,331.49 : 1,471,623.62 = 644,281.98 : x - Step 2: Convert to fraction form
981,331.49/1,471,623.62 = 644,281.98/x - Step 3: Cross multiply
981,331.49x = 1,471,623.62 × 644,281.98 - Step 4: Simplify right side
981,331.49x = 948,140,576,486.96 - Step 5: Solve for x
x = 948,140,576,486.96/981,331.49 - Step 6: Final answer
x = 966,177.68
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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.