Finding the Fourth Proportional to 878,159.28, 1,211,861.04 and 475,751.28
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Solution
The fourth proportional to 878,159.28, 1,211,861.04 and 475,751.28 is: 656,537.43
Step by Step Solution
- Step 1: Write the proportion equation
878,159.28 : 1,211,861.04 = 475,751.28 : x - Step 2: Convert to fraction form
878,159.28/1,211,861.04 = 475,751.28/x - Step 3: Cross multiply
878,159.28x = 1,211,861.04 × 475,751.28 - Step 4: Simplify right side
878,159.28x = 576,544,440,962.13 - Step 5: Solve for x
x = 576,544,440,962.13/878,159.28 - Step 6: Final answer
x = 656,537.43
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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.