Finding the Fourth Proportional to 2,982,321.05, 4,115,719.55 and 1,693,281.38
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Solution
The fourth proportional to 2,982,321.05, 4,115,719.55 and 1,693,281.38 is: 2,336,794.45
Step by Step Solution
- Step 1: Write the proportion equation
2,982,321.05 : 4,115,719.55 = 1,693,281.38 : x - Step 2: Convert to fraction form
2,982,321.05/4,115,719.55 = 1,693,281.38/x - Step 3: Cross multiply
2,982,321.05x = 4,115,719.55 × 1,693,281.38 - Step 4: Simplify right side
2,982,321.05x = 6,969,071,262,971.59 - Step 5: Solve for x
x = 6,969,071,262,971.59/2,982,321.05 - Step 6: Final answer
x = 2,336,794.45
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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.