Finding the Fourth Proportional to 3,938,107.58, 5,908,157.65 and 1,098,220.02
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Solution
The fourth proportional to 3,938,107.58, 5,908,157.65 and 1,098,220.02 is: 1,647,607.86
Step by Step Solution
- Step 1: Write the proportion equation
3,938,107.58 : 5,908,157.65 = 1,098,220.02 : x - Step 2: Convert to fraction form
3,938,107.58/5,908,157.65 = 1,098,220.02/x - Step 3: Cross multiply
3,938,107.58x = 5,908,157.65 × 1,098,220.02 - Step 4: Simplify right side
3,938,107.58x = 6,488,457,012,546.15 - Step 5: Solve for x
x = 6,488,457,012,546.15/3,938,107.58 - Step 6: Final answer
x = 1,647,607.86
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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.