Finding the Fourth Proportional to 1,421,451.70, 2,131,396.74 and 700,206.44
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Solution
The fourth proportional to 1,421,451.70, 2,131,396.74 and 700,206.44 is: 1,049,925.03
Step by Step Solution
- Step 1: Write the proportion equation
1,421,451.70 : 2,131,396.74 = 700,206.44 : x - Step 2: Convert to fraction form
1,421,451.70/2,131,396.74 = 700,206.44/x - Step 3: Cross multiply
1,421,451.70x = 2,131,396.74 × 700,206.44 - Step 4: Simplify right side
1,421,451.70x = 1,492,417,724,875.13 - Step 5: Solve for x
x = 1,492,417,724,875.13/1,421,451.70 - Step 6: Final answer
x = 1,049,925.03
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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.