Finding the Fourth Proportional to 1,057,902.12, 1,587,121.70 and 489,692.79
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Solution
The fourth proportional to 1,057,902.12, 1,587,121.70 and 489,692.79 is: 734,663.48
Step by Step Solution
- Step 1: Write the proportion equation
1,057,902.12 : 1,587,121.70 = 489,692.79 : x - Step 2: Convert to fraction form
1,057,902.12/1,587,121.70 = 489,692.79/x - Step 3: Cross multiply
1,057,902.12x = 1,587,121.70 × 489,692.79 - Step 4: Simplify right side
1,057,902.12x = 777,202,050,894.08 - Step 5: Solve for x
x = 777,202,050,894.08/1,057,902.12 - Step 6: Final answer
x = 734,663.48
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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.