Finding the Fourth Proportional to 509,319.09, 702,902.21 and 328,407.62
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Solution
The fourth proportional to 509,319.09, 702,902.21 and 328,407.62 is: 453,229.50
Step by Step Solution
- Step 1: Write the proportion equation
509,319.09 : 702,902.21 = 328,407.62 : x - Step 2: Convert to fraction form
509,319.09/702,902.21 = 328,407.62/x - Step 3: Cross multiply
509,319.09x = 702,902.21 × 328,407.62 - Step 4: Simplify right side
509,319.09x = 230,838,436,722.29 - Step 5: Solve for x
x = 230,838,436,722.29/509,319.09 - Step 6: Final answer
x = 453,229.50
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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.