Finding the Fourth Proportional to 2,190,246.36, 3,278,486.68 and 1,392,428.76
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Solution
The fourth proportional to 2,190,246.36, 3,278,486.68 and 1,392,428.76 is: 2,084,267.43
Step by Step Solution
- Step 1: Write the proportion equation
2,190,246.36 : 3,278,486.68 = 1,392,428.76 : x - Step 2: Convert to fraction form
2,190,246.36/3,278,486.68 = 1,392,428.76/x - Step 3: Cross multiply
2,190,246.36x = 3,278,486.68 × 1,392,428.76 - Step 4: Simplify right side
2,190,246.36x = 4,565,059,142,508.92 - Step 5: Solve for x
x = 4,565,059,142,508.92/2,190,246.36 - Step 6: Final answer
x = 2,084,267.43
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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.