Finding the Fourth Proportional to 3,888,020.40, 5,829,265.80 and 1,490,938.80
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Solution
The fourth proportional to 3,888,020.40, 5,829,265.80 and 1,490,938.80 is: 2,235,347.98
Step by Step Solution
- Step 1: Write the proportion equation
3,888,020.40 : 5,829,265.80 = 1,490,938.80 : x - Step 2: Convert to fraction form
3,888,020.40/5,829,265.80 = 1,490,938.80/x - Step 3: Cross multiply
3,888,020.40x = 5,829,265.80 × 1,490,938.80 - Step 4: Simplify right side
3,888,020.40x = 8,691,078,556,733.04 - Step 5: Solve for x
x = 8,691,078,556,733.04/3,888,020.40 - Step 6: Final answer
x = 2,235,347.98
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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.