Finding the Fourth Proportional to 816,283.68, 1,126,011.75 and 489,509.67
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Solution
The fourth proportional to 816,283.68, 1,126,011.75 and 489,509.67 is: 675,247.65
Step by Step Solution
- Step 1: Write the proportion equation
816,283.68 : 1,126,011.75 = 489,509.67 : x - Step 2: Convert to fraction form
816,283.68/1,126,011.75 = 489,509.67/x - Step 3: Cross multiply
816,283.68x = 1,126,011.75 × 489,509.67 - Step 4: Simplify right side
816,283.68x = 551,193,640,158.62 - Step 5: Solve for x
x = 551,193,640,158.62/816,283.68 - Step 6: Final answer
x = 675,247.65
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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.