Finding the Fourth Proportional to 680,218.18, 938,672.90 and 370,122.05
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Solution
The fourth proportional to 680,218.18, 938,672.90 and 370,122.05 is: 510,753.09
Step by Step Solution
- Step 1: Write the proportion equation
680,218.18 : 938,672.90 = 370,122.05 : x - Step 2: Convert to fraction form
680,218.18/938,672.90 = 370,122.05/x - Step 3: Cross multiply
680,218.18x = 938,672.90 × 370,122.05 - Step 4: Simplify right side
680,218.18x = 347,423,538,027.45 - Step 5: Solve for x
x = 347,423,538,027.45/680,218.18 - Step 6: Final answer
x = 510,753.09
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1.5x scale
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.