Finding the Fourth Proportional to 1,537,028.01, 2,121,278.55 and 1,278,448.74
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Solution
The fourth proportional to 1,537,028.01, 2,121,278.55 and 1,278,448.74 is: 1,764,408.89
Step by Step Solution
- Step 1: Write the proportion equation
1,537,028.01 : 2,121,278.55 = 1,278,448.74 : x - Step 2: Convert to fraction form
1,537,028.01/2,121,278.55 = 1,278,448.74/x - Step 3: Cross multiply
1,537,028.01x = 2,121,278.55 × 1,278,448.74 - Step 4: Simplify right side
1,537,028.01x = 2,711,945,889,436.53 - Step 5: Solve for x
x = 2,711,945,889,436.53/1,537,028.01 - Step 6: Final answer
x = 1,764,408.89
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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.