Finding the Fourth Proportional to 518,947.62, 778,476.81 and 219,458.49
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Solution
The fourth proportional to 518,947.62, 778,476.81 and 219,458.49 is: 329,211.15
Step by Step Solution
- Step 1: Write the proportion equation
518,947.62 : 778,476.81 = 219,458.49 : x - Step 2: Convert to fraction form
518,947.62/778,476.81 = 219,458.49/x - Step 3: Cross multiply
518,947.62x = 778,476.81 × 219,458.49 - Step 4: Simplify right side
518,947.62x = 170,843,345,222.62 - Step 5: Solve for x
x = 170,843,345,222.62/518,947.62 - Step 6: Final answer
x = 329,211.15
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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.