Finding the Fourth Proportional to 817,863.68, 1,227,045.71 and 418,786.81
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Solution
The fourth proportional to 817,863.68, 1,227,045.71 and 418,786.81 is: 628,308.32
Step by Step Solution
- Step 1: Write the proportion equation
817,863.68 : 1,227,045.71 = 418,786.81 : x - Step 2: Convert to fraction form
817,863.68/1,227,045.71 = 418,786.81/x - Step 3: Cross multiply
817,863.68x = 1,227,045.71 × 418,786.81 - Step 4: Simplify right side
817,863.68x = 513,870,556,594.44 - Step 5: Solve for x
x = 513,870,556,594.44/817,863.68 - Step 6: Final answer
x = 628,308.32
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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.