Finding the Fourth Proportional to 816,312.09, 1,224,470.84 and 247,698.03
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Solution
The fourth proportional to 816,312.09, 1,224,470.84 and 247,698.03 is: 371,547.87
Step by Step Solution
- Step 1: Write the proportion equation
816,312.09 : 1,224,470.84 = 247,698.03 : x - Step 2: Convert to fraction form
816,312.09/1,224,470.84 = 247,698.03/x - Step 3: Cross multiply
816,312.09x = 1,224,470.84 × 247,698.03 - Step 4: Simplify right side
816,312.09x = 303,299,014,860.45 - Step 5: Solve for x
x = 303,299,014,860.45/816,312.09 - Step 6: Final answer
x = 371,547.87
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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.