Finding the Fourth Proportional to 782,538.29, 1,079,883.35 and 438,371.93
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Solution
The fourth proportional to 782,538.29, 1,079,883.35 and 438,371.93 is: 604,942.35
Step by Step Solution
- Step 1: Write the proportion equation
782,538.29 : 1,079,883.35 = 438,371.93 : x - Step 2: Convert to fraction form
782,538.29/1,079,883.35 = 438,371.93/x - Step 3: Cross multiply
782,538.29x = 1,079,883.35 × 438,371.93 - Step 4: Simplify right side
782,538.29x = 473,390,552,110.00 - Step 5: Solve for x
x = 473,390,552,110.00/782,538.29 - Step 6: Final answer
x = 604,942.35
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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.