Finding the Fourth Proportional to 1,948,873.66, 2,689,456.44 and 1,089,470.14
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Solution
The fourth proportional to 1,948,873.66, 2,689,456.44 and 1,089,470.14 is: 1,503,474.82
Step by Step Solution
- Step 1: Write the proportion equation
1,948,873.66 : 2,689,456.44 = 1,089,470.14 : x - Step 2: Convert to fraction form
1,948,873.66/2,689,456.44 = 1,089,470.14/x - Step 3: Cross multiply
1,948,873.66x = 2,689,456.44 × 1,089,470.14 - Step 4: Simplify right side
1,948,873.66x = 2,930,082,484,210.70 - Step 5: Solve for x
x = 2,930,082,484,210.70/1,948,873.66 - Step 6: Final answer
x = 1,503,474.82
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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.