Finding the Fourth Proportional to 4,878,982.80, 7,313,225.40 and 1,845,176.40
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Solution
The fourth proportional to 4,878,982.80, 7,313,225.40 and 1,845,176.40 is: 2,765,779.56
Step by Step Solution
- Step 1: Write the proportion equation
4,878,982.80 : 7,313,225.40 = 1,845,176.40 : x - Step 2: Convert to fraction form
4,878,982.80/7,313,225.40 = 1,845,176.40/x - Step 3: Cross multiply
4,878,982.80x = 7,313,225.40 × 1,845,176.40 - Step 4: Simplify right side
4,878,982.80x = 13,494,190,915,960.56 - Step 5: Solve for x
x = 13,494,190,915,960.56/4,878,982.80 - Step 6: Final answer
x = 2,765,779.56
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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.