Finding the Fourth Proportional to 853,629.40, 1,178,006.14 and 471,653.46
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Solution
The fourth proportional to 853,629.40, 1,178,006.14 and 471,653.46 is: 650,880.43
Step by Step Solution
- Step 1: Write the proportion equation
853,629.40 : 1,178,006.14 = 471,653.46 : x - Step 2: Convert to fraction form
853,629.40/1,178,006.14 = 471,653.46/x - Step 3: Cross multiply
853,629.40x = 1,178,006.14 × 471,653.46 - Step 4: Simplify right side
853,629.40x = 555,610,671,832.24 - Step 5: Solve for x
x = 555,610,671,832.24/853,629.40 - Step 6: Final answer
x = 650,880.43
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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.