Finding the Fourth Proportional to 4,380,809.20, 6,570,599.40 and 1,389,295.60
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Solution
The fourth proportional to 4,380,809.20, 6,570,599.40 and 1,389,295.60 is: 2,083,748.55
Step by Step Solution
- Step 1: Write the proportion equation
4,380,809.20 : 6,570,599.40 = 1,389,295.60 : x - Step 2: Convert to fraction form
4,380,809.20/6,570,599.40 = 1,389,295.60/x - Step 3: Cross multiply
4,380,809.20x = 6,570,599.40 × 1,389,295.60 - Step 4: Simplify right side
4,380,809.20x = 9,128,504,835,782.64 - Step 5: Solve for x
x = 9,128,504,835,782.64/4,380,809.20 - Step 6: Final answer
x = 2,083,748.55
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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.