Finding the Fourth Proportional to 1,081,239.48, 1,492,152.84 and 718,037.10
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Solution
The fourth proportional to 1,081,239.48, 1,492,152.84 and 718,037.10 is: 990,919.33
Step by Step Solution
- Step 1: Write the proportion equation
1,081,239.48 : 1,492,152.84 = 718,037.10 : x - Step 2: Convert to fraction form
1,081,239.48/1,492,152.84 = 718,037.10/x - Step 3: Cross multiply
1,081,239.48x = 1,492,152.84 × 718,037.10 - Step 4: Simplify right side
1,081,239.48x = 1,071,421,097,990.36 - Step 5: Solve for x
x = 1,071,421,097,990.36/1,081,239.48 - Step 6: Final answer
x = 990,919.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.