Finding the Fourth Proportional to 1,419,490.20, 1,958,904.44 and 807,642.95
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Solution
The fourth proportional to 1,419,490.20, 1,958,904.44 and 807,642.95 is: 1,114,551.80
Step by Step Solution
- Step 1: Write the proportion equation
1,419,490.20 : 1,958,904.44 = 807,642.95 : x - Step 2: Convert to fraction form
1,419,490.20/1,958,904.44 = 807,642.95/x - Step 3: Cross multiply
1,419,490.20x = 1,958,904.44 × 807,642.95 - Step 4: Simplify right side
1,419,490.20x = 1,582,095,360,689.70 - Step 5: Solve for x
x = 1,582,095,360,689.70/1,419,490.20 - Step 6: Final answer
x = 1,114,551.80
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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.