Finding the Fourth Proportional to 717,787.97, 990,536.81 and 411,857.65
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Solution
The fourth proportional to 717,787.97, 990,536.81 and 411,857.65 is: 568,357.48
Step by Step Solution
- Step 1: Write the proportion equation
717,787.97 : 990,536.81 = 411,857.65 : x - Step 2: Convert to fraction form
717,787.97/990,536.81 = 411,857.65/x - Step 3: Cross multiply
717,787.97x = 990,536.81 × 411,857.65 - Step 4: Simplify right side
717,787.97x = 407,960,162,805.10 - Step 5: Solve for x
x = 407,960,162,805.10/717,787.97 - Step 6: Final answer
x = 568,357.48
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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.