Finding the Fourth Proportional to 1,297,747.18, 1,790,631.03 and 724,699.18
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Solution
The fourth proportional to 1,297,747.18, 1,790,631.03 and 724,699.18 is: 999,939.63
Step by Step Solution
- Step 1: Write the proportion equation
1,297,747.18 : 1,790,631.03 = 724,699.18 : x - Step 2: Convert to fraction form
1,297,747.18/1,790,631.03 = 724,699.18/x - Step 3: Cross multiply
1,297,747.18x = 1,790,631.03 × 724,699.18 - Step 4: Simplify right side
1,297,747.18x = 1,297,668,839,123.56 - Step 5: Solve for x
x = 1,297,668,839,123.56/1,297,747.18 - Step 6: Final answer
x = 999,939.63
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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.