Finding the Fourth Proportional to 554,575.98, 765,315.09 and 312,857.94
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Solution
The fourth proportional to 554,575.98, 765,315.09 and 312,857.94 is: 431,744.09
Step by Step Solution
- Step 1: Write the proportion equation
554,575.98 : 765,315.09 = 312,857.94 : x - Step 2: Convert to fraction form
554,575.98/765,315.09 = 312,857.94/x - Step 3: Cross multiply
554,575.98x = 765,315.09 × 312,857.94 - Step 4: Simplify right side
554,575.98x = 239,434,902,508.32 - Step 5: Solve for x
x = 239,434,902,508.32/554,575.98 - Step 6: Final answer
x = 431,744.09
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1.5x scale
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.