Finding the Fourth Proportional to 2,109,422.70, 3,163,631.58 and 910,689.12
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Solution
The fourth proportional to 2,109,422.70, 3,163,631.58 and 910,689.12 is: 1,365,816.75
Step by Step Solution
- Step 1: Write the proportion equation
2,109,422.70 : 3,163,631.58 = 910,689.12 : x - Step 2: Convert to fraction form
2,109,422.70/3,163,631.58 = 910,689.12/x - Step 3: Cross multiply
2,109,422.70x = 3,163,631.58 × 910,689.12 - Step 4: Simplify right side
2,109,422.70x = 2,881,084,859,594.41 - Step 5: Solve for x
x = 2,881,084,859,594.41/2,109,422.70 - Step 6: Final answer
x = 1,365,816.75
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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.