Finding the Fourth Proportional to 1,788,737.40, 2,468,233.08 and 1,209,221.12
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Solution
The fourth proportional to 1,788,737.40, 2,468,233.08 and 1,209,221.12 is: 1,668,573.36
Step by Step Solution
- Step 1: Write the proportion equation
1,788,737.40 : 2,468,233.08 = 1,209,221.12 : x - Step 2: Convert to fraction form
1,788,737.40/2,468,233.08 = 1,209,221.12/x - Step 3: Cross multiply
1,788,737.40x = 2,468,233.08 × 1,209,221.12 - Step 4: Simplify right side
1,788,737.40x = 2,984,639,575,589.23 - Step 5: Solve for x
x = 2,984,639,575,589.23/1,788,737.40 - Step 6: Final answer
x = 1,668,573.36
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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.