Finding the Fourth Proportional to 478,616.14, 717,963.09 and 174,976.30
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Solution
The fourth proportional to 478,616.14, 717,963.09 and 174,976.30 is: 262,478.66
Step by Step Solution
- Step 1: Write the proportion equation
478,616.14 : 717,963.09 = 174,976.30 : x - Step 2: Convert to fraction form
478,616.14/717,963.09 = 174,976.30/x - Step 3: Cross multiply
478,616.14x = 717,963.09 × 174,976.30 - Step 4: Simplify right side
478,616.14x = 125,626,520,560.07 - Step 5: Solve for x
x = 125,626,520,560.07/478,616.14 - Step 6: Final answer
x = 262,478.66
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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.