Finding the Fourth Proportional to 561,124.69, 774,356.18 and 306,475.88
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Solution
The fourth proportional to 561,124.69, 774,356.18 and 306,475.88 is: 422,938.95
Step by Step Solution
- Step 1: Write the proportion equation
561,124.69 : 774,356.18 = 306,475.88 : x - Step 2: Convert to fraction form
561,124.69/774,356.18 = 306,475.88/x - Step 3: Cross multiply
561,124.69x = 774,356.18 × 306,475.88 - Step 4: Simplify right side
561,124.69x = 237,321,486,294.78 - Step 5: Solve for x
x = 237,321,486,294.78/561,124.69 - Step 6: Final answer
x = 422,938.95
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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.