Finding the Fourth Proportional to 1,269,129.62, 1,902,747.54 and 763,572.18
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Solution
The fourth proportional to 1,269,129.62, 1,902,747.54 and 763,572.18 is: 1,144,788.57
Step by Step Solution
- Step 1: Write the proportion equation
1,269,129.62 : 1,902,747.54 = 763,572.18 : x - Step 2: Convert to fraction form
1,269,129.62/1,902,747.54 = 763,572.18/x - Step 3: Cross multiply
1,269,129.62x = 1,902,747.54 × 763,572.18 - Step 4: Simplify right side
1,269,129.62x = 1,452,885,087,107.44 - Step 5: Solve for x
x = 1,452,885,087,107.44/1,269,129.62 - Step 6: Final answer
x = 1,144,788.57
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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.