Finding the Fourth Proportional to 561,530.26, 774,909.88 and 306,881.38
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Solution
The fourth proportional to 561,530.26, 774,909.88 and 306,881.38 is: 423,495.28
Step by Step Solution
- Step 1: Write the proportion equation
561,530.26 : 774,909.88 = 306,881.38 : x - Step 2: Convert to fraction form
561,530.26/774,909.88 = 306,881.38/x - Step 3: Cross multiply
561,530.26x = 774,909.88 × 306,881.38 - Step 4: Simplify right side
561,530.26x = 237,805,413,350.03 - Step 5: Solve for x
x = 237,805,413,350.03/561,530.26 - Step 6: Final answer
x = 423,495.28
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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.