Finding the Fourth Proportional to 411,429.68, 617,104.56 and 279,159.92
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Solution
The fourth proportional to 411,429.68, 617,104.56 and 279,159.92 is: 418,712.77
Step by Step Solution
- Step 1: Write the proportion equation
411,429.68 : 617,104.56 = 279,159.92 : x - Step 2: Convert to fraction form
411,429.68/617,104.56 = 279,159.92/x - Step 3: Cross multiply
411,429.68x = 617,104.56 × 279,159.92 - Step 4: Simplify right side
411,429.68x = 172,270,859,601.24 - Step 5: Solve for x
x = 172,270,859,601.24/411,429.68 - Step 6: Final answer
x = 418,712.77
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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.