Finding the Fourth Proportional to 750,942.12, 1,036,305.14 and 406,778.07
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Solution
The fourth proportional to 750,942.12, 1,036,305.14 and 406,778.07 is: 561,356.45
Step by Step Solution
- Step 1: Write the proportion equation
750,942.12 : 1,036,305.14 = 406,778.07 : x - Step 2: Convert to fraction form
750,942.12/1,036,305.14 = 406,778.07/x - Step 3: Cross multiply
750,942.12x = 1,036,305.14 × 406,778.07 - Step 4: Simplify right side
750,942.12x = 421,546,204,780.28 - Step 5: Solve for x
x = 421,546,204,780.28/750,942.12 - Step 6: Final answer
x = 561,356.45
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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.