Finding the Fourth Proportional to 3,119,243.60, 4,678,865.40 and 875,381.60
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Solution
The fourth proportional to 3,119,243.60, 4,678,865.40 and 875,381.60 is: 1,313,072.40
Step by Step Solution
- Step 1: Write the proportion equation
3,119,243.60 : 4,678,865.40 = 875,381.60 : x - Step 2: Convert to fraction form
3,119,243.60/4,678,865.40 = 875,381.60/x - Step 3: Cross multiply
3,119,243.60x = 4,678,865.40 × 875,381.60 - Step 4: Simplify right side
3,119,243.60x = 4,095,792,680,036.64 - Step 5: Solve for x
x = 4,095,792,680,036.64/3,119,243.60 - Step 6: Final answer
x = 1,313,072.40
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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.