Finding the Fourth Proportional to 821,334.94, 1,133,430.06 and 458,764.06
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Solution
The fourth proportional to 821,334.94, 1,133,430.06 and 458,764.06 is: 633,087.61
Step by Step Solution
- Step 1: Write the proportion equation
821,334.94 : 1,133,430.06 = 458,764.06 : x - Step 2: Convert to fraction form
821,334.94/1,133,430.06 = 458,764.06/x - Step 3: Cross multiply
821,334.94x = 1,133,430.06 × 458,764.06 - Step 4: Simplify right side
821,334.94x = 519,976,976,051.64 - Step 5: Solve for x
x = 519,976,976,051.64/821,334.94 - Step 6: Final answer
x = 633,087.61
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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.