Finding the Fourth Proportional to 1,490,911.80, 2,236,367.70 and 691,927.80
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Solution
The fourth proportional to 1,490,911.80, 2,236,367.70 and 691,927.80 is: 1,037,891.70
Step by Step Solution
- Step 1: Write the proportion equation
1,490,911.80 : 2,236,367.70 = 691,927.80 : x - Step 2: Convert to fraction form
1,490,911.80/2,236,367.70 = 691,927.80/x - Step 3: Cross multiply
1,490,911.80x = 2,236,367.70 × 691,927.80 - Step 4: Simplify right side
1,490,911.80x = 1,547,404,982,652.06 - Step 5: Solve for x
x = 1,547,404,982,652.06/1,490,911.80 - Step 6: Final answer
x = 1,037,891.70
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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.