Finding the Fourth Proportional to 1,201,830.09, 1,658,525.90 and 658,000.42
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Solution
The fourth proportional to 1,201,830.09, 1,658,525.90 and 658,000.42 is: 908,040.78
Step by Step Solution
- Step 1: Write the proportion equation
1,201,830.09 : 1,658,525.90 = 658,000.42 : x - Step 2: Convert to fraction form
1,201,830.09/1,658,525.90 = 658,000.42/x - Step 3: Cross multiply
1,201,830.09x = 1,658,525.90 × 658,000.42 - Step 4: Simplify right side
1,201,830.09x = 1,091,310,731,344.56 - Step 5: Solve for x
x = 1,091,310,731,344.56/1,201,830.09 - Step 6: Final answer
x = 908,040.78
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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.