Finding the Fourth Proportional to 878,532.80, 1,316,762.40 and 656,657.60
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Solution
The fourth proportional to 878,532.80, 1,316,762.40 and 656,657.60 is: 984,211.45
Step by Step Solution
- Step 1: Write the proportion equation
878,532.80 : 1,316,762.40 = 656,657.60 : x - Step 2: Convert to fraction form
878,532.80/1,316,762.40 = 656,657.60/x - Step 3: Cross multiply
878,532.80x = 1,316,762.40 × 656,657.60 - Step 4: Simplify right side
878,532.80x = 864,662,037,354.24 - Step 5: Solve for x
x = 864,662,037,354.24/878,532.80 - Step 6: Final answer
x = 984,211.45
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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.