Finding the Fourth Proportional to 408,721.59, 564,113.79 and 270,657.09
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Solution
The fourth proportional to 408,721.59, 564,113.79 and 270,657.09 is: 373,558.43
Step by Step Solution
- Step 1: Write the proportion equation
408,721.59 : 564,113.79 = 270,657.09 : x - Step 2: Convert to fraction form
408,721.59/564,113.79 = 270,657.09/x - Step 3: Cross multiply
408,721.59x = 564,113.79 × 270,657.09 - Step 4: Simplify right side
408,721.59x = 152,681,396,830.27 - Step 5: Solve for x
x = 152,681,396,830.27/408,721.59 - Step 6: Final answer
x = 373,558.43
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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.