Finding the Fourth Proportional to 561,531.60, 774,911.86 and 306,882.80
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Solution
The fourth proportional to 561,531.60, 774,911.86 and 306,882.80 is: 423,497.31
Step by Step Solution
- Step 1: Write the proportion equation
561,531.60 : 774,911.86 = 306,882.80 : x - Step 2: Convert to fraction form
561,531.60/774,911.86 = 306,882.80/x - Step 3: Cross multiply
561,531.60x = 774,911.86 × 306,882.80 - Step 4: Simplify right side
561,531.60x = 237,807,121,350.01 - Step 5: Solve for x
x = 237,807,121,350.01/561,531.60 - Step 6: Final answer
x = 423,497.31
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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.