Finding the Fourth Proportional to 812,068.49, 1,120,625.93 and 449,493.05
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Solution
The fourth proportional to 812,068.49, 1,120,625.93 and 449,493.05 is: 620,284.58
Step by Step Solution
- Step 1: Write the proportion equation
812,068.49 : 1,120,625.93 = 449,493.05 : x - Step 2: Convert to fraction form
812,068.49/1,120,625.93 = 449,493.05/x - Step 3: Cross multiply
812,068.49x = 1,120,625.93 × 449,493.05 - Step 4: Simplify right side
812,068.49x = 503,713,559,334.19 - Step 5: Solve for x
x = 503,713,559,334.19/812,068.49 - Step 6: Final answer
x = 620,284.58
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.