Finding the Fourth Proportional to 478,616.80, 660,489.74 and 263,756.80
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Solution
The fourth proportional to 478,616.80, 660,489.74 and 263,756.80 is: 363,983.59
Step by Step Solution
- Step 1: Write the proportion equation
478,616.80 : 660,489.74 = 263,756.80 : x - Step 2: Convert to fraction form
478,616.80/660,489.74 = 263,756.80/x - Step 3: Cross multiply
478,616.80x = 660,489.74 × 263,756.80 - Step 4: Simplify right side
478,616.80x = 174,208,660,255.23 - Step 5: Solve for x
x = 174,208,660,255.23/478,616.80 - Step 6: Final answer
x = 363,983.59
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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.