Finding the Fourth Proportional to 690,974.94, 1,037,015.37 and 358,645.98
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Solution
The fourth proportional to 690,974.94, 1,037,015.37 and 358,645.98 is: 538,255.98
Step by Step Solution
- Step 1: Write the proportion equation
690,974.94 : 1,037,015.37 = 358,645.98 : x - Step 2: Convert to fraction form
690,974.94/1,037,015.37 = 358,645.98/x - Step 3: Cross multiply
690,974.94x = 1,037,015.37 × 358,645.98 - Step 4: Simplify right side
690,974.94x = 371,921,393,648.71 - Step 5: Solve for x
x = 371,921,393,648.71/690,974.94 - Step 6: Final answer
x = 538,255.98
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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.