Finding the Fourth Proportional to 2,115,310.08, 2,919,048.18 and 1,148,419.44
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Solution
The fourth proportional to 2,115,310.08, 2,919,048.18 and 1,148,419.44 is: 1,584,775.54
Step by Step Solution
- Step 1: Write the proportion equation
2,115,310.08 : 2,919,048.18 = 1,148,419.44 : x - Step 2: Convert to fraction form
2,115,310.08/2,919,048.18 = 1,148,419.44/x - Step 3: Cross multiply
2,115,310.08x = 2,919,048.18 × 1,148,419.44 - Step 4: Simplify right side
2,115,310.08x = 3,352,291,676,208.62 - Step 5: Solve for x
x = 3,352,291,676,208.62/2,115,310.08 - Step 6: Final answer
x = 1,584,775.54
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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.