Finding the Fourth Proportional to 685,553.36, 1,026,990.84 and 472,283.60
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Solution
The fourth proportional to 685,553.36, 1,026,990.84 and 472,283.60 is: 707,502.81
Step by Step Solution
- Step 1: Write the proportion equation
685,553.36 : 1,026,990.84 = 472,283.60 : x - Step 2: Convert to fraction form
685,553.36/1,026,990.84 = 472,283.60/x - Step 3: Cross multiply
685,553.36x = 1,026,990.84 × 472,283.60 - Step 4: Simplify right side
685,553.36x = 485,030,931,082.22 - Step 5: Solve for x
x = 485,030,931,082.22/685,553.36 - Step 6: Final answer
x = 707,502.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.