Finding the Fourth Proportional to 875,663.17, 1,313,728.76 and 314,702.53
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Solution
The fourth proportional to 875,663.17, 1,313,728.76 and 314,702.53 is: 472,137.89
Step by Step Solution
- Step 1: Write the proportion equation
875,663.17 : 1,313,728.76 = 314,702.53 : x - Step 2: Convert to fraction form
875,663.17/1,313,728.76 = 314,702.53/x - Step 3: Cross multiply
875,663.17x = 1,313,728.76 × 314,702.53 - Step 4: Simplify right side
875,663.17x = 413,433,762,932.25 - Step 5: Solve for x
x = 413,433,762,932.25/875,663.17 - Step 6: Final answer
x = 472,137.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.