Finding the Fourth Proportional to 1,617,109.12, 2,425,653.60 and 419,028.40
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Solution
The fourth proportional to 1,617,109.12, 2,425,653.60 and 419,028.40 is: 628,539.99
Step by Step Solution
- Step 1: Write the proportion equation
1,617,109.12 : 2,425,653.60 = 419,028.40 : x - Step 2: Convert to fraction form
1,617,109.12/2,425,653.60 = 419,028.40/x - Step 3: Cross multiply
1,617,109.12x = 2,425,653.60 × 419,028.40 - Step 4: Simplify right side
1,617,109.12x = 1,016,417,746,962.24 - Step 5: Solve for x
x = 1,016,417,746,962.24/1,617,109.12 - Step 6: Final answer
x = 628,539.99
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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.