Finding the Fourth Proportional to 842,721.66, 1,264,208.34 and 310,202.19
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Solution
The fourth proportional to 842,721.66, 1,264,208.34 and 310,202.19 is: 465,349.61
Step by Step Solution
- Step 1: Write the proportion equation
842,721.66 : 1,264,208.34 = 310,202.19 : x - Step 2: Convert to fraction form
842,721.66/1,264,208.34 = 310,202.19/x - Step 3: Cross multiply
842,721.66x = 1,264,208.34 × 310,202.19 - Step 4: Simplify right side
842,721.66x = 392,160,195,684.27 - Step 5: Solve for x
x = 392,160,195,684.27/842,721.66 - Step 6: Final answer
x = 465,349.61
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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.