Finding the Fourth Proportional to 842,721.82, 1,264,208.91 and 310,202.26
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Solution
The fourth proportional to 842,721.82, 1,264,208.91 and 310,202.26 is: 465,349.84
Step by Step Solution
- Step 1: Write the proportion equation
842,721.82 : 1,264,208.91 = 310,202.26 : x - Step 2: Convert to fraction form
842,721.82/1,264,208.91 = 310,202.26/x - Step 3: Cross multiply
842,721.82x = 1,264,208.91 × 310,202.26 - Step 4: Simplify right side
842,721.82x = 392,160,460,994.14 - Step 5: Solve for x
x = 392,160,460,994.14/842,721.82 - Step 6: Final answer
x = 465,349.84
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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.