Finding the Fourth Proportional to 2,428,351.40, 3,643,547.70 and 1,305,108.20
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Solution
The fourth proportional to 2,428,351.40, 3,643,547.70 and 1,305,108.20 is: 1,958,210.82
Step by Step Solution
- Step 1: Write the proportion equation
2,428,351.40 : 3,643,547.70 = 1,305,108.20 : x - Step 2: Convert to fraction form
2,428,351.40/3,643,547.70 = 1,305,108.20/x - Step 3: Cross multiply
2,428,351.40x = 3,643,547.70 × 1,305,108.20 - Step 4: Simplify right side
2,428,351.40x = 4,755,223,980,361.14 - Step 5: Solve for x
x = 4,755,223,980,361.14/2,428,351.40 - Step 6: Final answer
x = 1,958,210.82
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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.