Finding the Fourth Proportional to 3,977,398.49, 5,488,620.95 and 2,258,290.13
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Solution
The fourth proportional to 3,977,398.49, 5,488,620.95 and 2,258,290.13 is: 3,116,333.09
Step by Step Solution
- Step 1: Write the proportion equation
3,977,398.49 : 5,488,620.95 = 2,258,290.13 : x - Step 2: Convert to fraction form
3,977,398.49/5,488,620.95 = 2,258,290.13/x - Step 3: Cross multiply
3,977,398.49x = 5,488,620.95 × 2,258,290.13 - Step 4: Simplify right side
3,977,398.49x = 12,394,898,496,898.84 - Step 5: Solve for x
x = 12,394,898,496,898.84/3,977,398.49 - Step 6: Final answer
x = 3,116,333.09
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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.