Finding the Fourth Proportional to 826,738, 1,239,792.12 and 489,873.68
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Solution
The fourth proportional to 826,738, 1,239,792.12 and 489,873.68 is: 734,623.94
Step by Step Solution
- Step 1: Write the proportion equation
826,738 : 1,239,792.12 = 489,873.68 : x - Step 2: Convert to fraction form
826,738/1,239,792.12 = 489,873.68/x - Step 3: Cross multiply
826,738x = 1,239,792.12 × 489,873.68 - Step 4: Simplify right side
826,738x = 607,341,528,259.40 - Step 5: Solve for x
x = 607,341,528,259.40/826,738 - Step 6: Final answer
x = 734,623.94
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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.