Finding the Fourth Proportional to 986,274.24, 1,479,580.16 and 312,342.88
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Solution
The fourth proportional to 986,274.24, 1,479,580.16 and 312,342.88 is: 468,567.78
Step by Step Solution
- Step 1: Write the proportion equation
986,274.24 : 1,479,580.16 = 312,342.88 : x - Step 2: Convert to fraction form
986,274.24/1,479,580.16 = 312,342.88/x - Step 3: Cross multiply
986,274.24x = 1,479,580.16 × 312,342.88 - Step 4: Simplify right side
986,274.24x = 462,136,328,365.26 - Step 5: Solve for x
x = 462,136,328,365.26/986,274.24 - Step 6: Final answer
x = 468,567.78
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1.5x scale
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.