Finding the Fourth Proportional to 523,631.57, 722,689.70 and 319,799.70
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Solution
The fourth proportional to 523,631.57, 722,689.70 and 319,799.70 is: 441,371.31
Step by Step Solution
- Step 1: Write the proportion equation
523,631.57 : 722,689.70 = 319,799.70 : x - Step 2: Convert to fraction form
523,631.57/722,689.70 = 319,799.70/x - Step 3: Cross multiply
523,631.57x = 722,689.70 × 319,799.70 - Step 4: Simplify right side
523,631.57x = 231,115,947,654.09 - Step 5: Solve for x
x = 231,115,947,654.09/523,631.57 - Step 6: Final answer
x = 441,371.31
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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.