Finding the Fourth Proportional to 1,102,400.40, 1,653,211.80 and 392,451.60
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Solution
The fourth proportional to 1,102,400.40, 1,653,211.80 and 392,451.60 is: 588,538.99
Step by Step Solution
- Step 1: Write the proportion equation
1,102,400.40 : 1,653,211.80 = 392,451.60 : x - Step 2: Convert to fraction form
1,102,400.40/1,653,211.80 = 392,451.60/x - Step 3: Cross multiply
1,102,400.40x = 1,653,211.80 × 392,451.60 - Step 4: Simplify right side
1,102,400.40x = 648,805,616,048.88 - Step 5: Solve for x
x = 648,805,616,048.88/1,102,400.40 - Step 6: Final answer
x = 588,538.99
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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.