Finding the Fourth Proportional to 557,407.74, 769,232.82 and 315,740.49
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Solution
The fourth proportional to 557,407.74, 769,232.82 and 315,740.49 is: 435,727.62
Step by Step Solution
- Step 1: Write the proportion equation
557,407.74 : 769,232.82 = 315,740.49 : x - Step 2: Convert to fraction form
557,407.74/769,232.82 = 315,740.49/x - Step 3: Cross multiply
557,407.74x = 769,232.82 × 315,740.49 - Step 4: Simplify right side
557,407.74x = 242,877,947,510.88 - Step 5: Solve for x
x = 242,877,947,510.88/557,407.74 - Step 6: Final answer
x = 435,727.62
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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.