Finding the Fourth Proportional to 651,077.70, 976,616.55 and 399,135.30
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Solution
The fourth proportional to 651,077.70, 976,616.55 and 399,135.30 is: 598,702.95
Step by Step Solution
- Step 1: Write the proportion equation
651,077.70 : 976,616.55 = 399,135.30 : x - Step 2: Convert to fraction form
651,077.70/976,616.55 = 399,135.30/x - Step 3: Cross multiply
651,077.70x = 976,616.55 × 399,135.30 - Step 4: Simplify right side
651,077.70x = 389,802,139,669.22 - Step 5: Solve for x
x = 389,802,139,669.22/651,077.70 - Step 6: Final answer
x = 598,702.95
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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.