Finding the Fourth Proportional to 1,438,913.18, 1,985,704.49 and 785,540.23
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Solution
The fourth proportional to 1,438,913.18, 1,985,704.49 and 785,540.23 is: 1,084,047.86
Step by Step Solution
- Step 1: Write the proportion equation
1,438,913.18 : 1,985,704.49 = 785,540.23 : x - Step 2: Convert to fraction form
1,438,913.18/1,985,704.49 = 785,540.23/x - Step 3: Cross multiply
1,438,913.18x = 1,985,704.49 × 785,540.23 - Step 4: Simplify right side
1,438,913.18x = 1,559,850,754,367.56 - Step 5: Solve for x
x = 1,559,850,754,367.56/1,438,913.18 - Step 6: Final answer
x = 1,084,047.86
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.