Finding the Fourth Proportional to 1,421,353.40, 2,133,506.72 and 823,482.68
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Solution
The fourth proportional to 1,421,353.40, 2,133,506.72 and 823,482.68 is: 1,236,079.52
Step by Step Solution
- Step 1: Write the proportion equation
1,421,353.40 : 2,133,506.72 = 823,482.68 : x - Step 2: Convert to fraction form
1,421,353.40/2,133,506.72 = 823,482.68/x - Step 3: Cross multiply
1,421,353.40x = 2,133,506.72 × 823,482.68 - Step 4: Simplify right side
1,421,353.40x = 1,756,905,822,974.78 - Step 5: Solve for x
x = 1,756,905,822,974.78/1,421,353.40 - Step 6: Final answer
x = 1,236,079.52
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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.