Finding the Fourth Proportional to 970,658.70, 1,339,114.44 and 644,125.69
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Solution
The fourth proportional to 970,658.70, 1,339,114.44 and 644,125.69 is: 888,631.62
Step by Step Solution
- Step 1: Write the proportion equation
970,658.70 : 1,339,114.44 = 644,125.69 : x - Step 2: Convert to fraction form
970,658.70/1,339,114.44 = 644,125.69/x - Step 3: Cross multiply
970,658.70x = 1,339,114.44 × 644,125.69 - Step 4: Simplify right side
970,658.70x = 862,558,012,653.96 - Step 5: Solve for x
x = 862,558,012,653.96/970,658.70 - Step 6: Final answer
x = 888,631.62
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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.