Finding the Fourth Proportional to 3,539,690.18, 4,884,918.13 and 1,991,023.84
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Solution
The fourth proportional to 3,539,690.18, 4,884,918.13 and 1,991,023.84 is: 2,747,694.85
Step by Step Solution
- Step 1: Write the proportion equation
3,539,690.18 : 4,884,918.13 = 1,991,023.84 : x - Step 2: Convert to fraction form
3,539,690.18/4,884,918.13 = 1,991,023.84/x - Step 3: Cross multiply
3,539,690.18x = 4,884,918.13 × 1,991,023.84 - Step 4: Simplify right side
3,539,690.18x = 9,725,988,461,873.15 - Step 5: Solve for x
x = 9,725,988,461,873.15/3,539,690.18 - Step 6: Final answer
x = 2,747,694.85
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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.