Finding the Fourth Proportional to 1,121,162.93, 1,682,269.28 and 489,994.73
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Solution
The fourth proportional to 1,121,162.93, 1,682,269.28 and 489,994.73 is: 735,221.49
Step by Step Solution
- Step 1: Write the proportion equation
1,121,162.93 : 1,682,269.28 = 489,994.73 : x - Step 2: Convert to fraction form
1,121,162.93/1,682,269.28 = 489,994.73/x - Step 3: Cross multiply
1,121,162.93x = 1,682,269.28 × 489,994.73 - Step 4: Simplify right side
1,121,162.93x = 824,303,070,779.57 - Step 5: Solve for x
x = 824,303,070,779.57/1,121,162.93 - Step 6: Final answer
x = 735,221.49
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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.