Finding the Fourth Proportional to 1,392,167.80, 2,088,251.70 and 683,579.80
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Solution
The fourth proportional to 1,392,167.80, 2,088,251.70 and 683,579.80 is: 1,025,369.70
Step by Step Solution
- Step 1: Write the proportion equation
1,392,167.80 : 2,088,251.70 = 683,579.80 : x - Step 2: Convert to fraction form
1,392,167.80/2,088,251.70 = 683,579.80/x - Step 3: Cross multiply
1,392,167.80x = 2,088,251.70 × 683,579.80 - Step 4: Simplify right side
1,392,167.80x = 1,427,486,679,435.66 - Step 5: Solve for x
x = 1,427,486,679,435.66/1,392,167.80 - Step 6: Final answer
x = 1,025,369.70
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1.5x scale
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.