Finding the Fourth Proportional to 3,974,891.64, 5,961,501.54 and 1,279,457.88
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Solution
The fourth proportional to 3,974,891.64, 5,961,501.54 and 1,279,457.88 is: 1,918,917.75
Step by Step Solution
- Step 1: Write the proportion equation
3,974,891.64 : 5,961,501.54 = 1,279,457.88 : x - Step 2: Convert to fraction form
3,974,891.64/5,961,501.54 = 1,279,457.88/x - Step 3: Cross multiply
3,974,891.64x = 5,961,501.54 × 1,279,457.88 - Step 4: Simplify right side
3,974,891.64x = 7,627,490,121,985.14 - Step 5: Solve for x
x = 7,627,490,121,985.14/3,974,891.64 - Step 6: Final answer
x = 1,918,917.75
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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.