Finding the Fourth Proportional to 818,795.01, 1,129,922.07 and 456,211.07
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Solution
The fourth proportional to 818,795.01, 1,129,922.07 and 456,211.07 is: 629,562.89
Step by Step Solution
- Step 1: Write the proportion equation
818,795.01 : 1,129,922.07 = 456,211.07 : x - Step 2: Convert to fraction form
818,795.01/1,129,922.07 = 456,211.07/x - Step 3: Cross multiply
818,795.01x = 1,129,922.07 × 456,211.07 - Step 4: Simplify right side
818,795.01x = 515,482,950,921.71 - Step 5: Solve for x
x = 515,482,950,921.71/818,795.01 - Step 6: Final answer
x = 629,562.89
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1.5x scale
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.