Finding the Fourth Proportional to 617,326.18, 851,943.12 and 345,377.79
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Solution
The fourth proportional to 617,326.18, 851,943.12 and 345,377.79 is: 476,639.81
Step by Step Solution
- Step 1: Write the proportion equation
617,326.18 : 851,943.12 = 345,377.79 : x - Step 2: Convert to fraction form
617,326.18/851,943.12 = 345,377.79/x - Step 3: Cross multiply
617,326.18x = 851,943.12 × 345,377.79 - Step 4: Simplify right side
617,326.18x = 294,242,230,696.14 - Step 5: Solve for x
x = 294,242,230,696.14/617,326.18 - Step 6: Final answer
x = 476,639.81
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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.