Finding the Fourth Proportional to 692,437.15, 955,394.98 and 405,901.88
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Solution
The fourth proportional to 692,437.15, 955,394.98 and 405,901.88 is: 560,045.95
Step by Step Solution
- Step 1: Write the proportion equation
692,437.15 : 955,394.98 = 405,901.88 : x - Step 2: Convert to fraction form
692,437.15/955,394.98 = 405,901.88/x - Step 3: Cross multiply
692,437.15x = 955,394.98 × 405,901.88 - Step 4: Simplify right side
692,437.15x = 387,796,618,524.56 - Step 5: Solve for x
x = 387,796,618,524.56/692,437.15 - Step 6: Final answer
x = 560,045.95
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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.