Finding the Fourth Proportional to 480,621.61, 721,365.76 and 256,168.99
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Solution
The fourth proportional to 480,621.61, 721,365.76 and 256,168.99 is: 384,484.45
Step by Step Solution
- Step 1: Write the proportion equation
480,621.61 : 721,365.76 = 256,168.99 : x - Step 2: Convert to fraction form
480,621.61/721,365.76 = 256,168.99/x - Step 3: Cross multiply
480,621.61x = 721,365.76 × 256,168.99 - Step 4: Simplify right side
480,621.61x = 184,791,534,552.95 - Step 5: Solve for x
x = 184,791,534,552.95/480,621.61 - Step 6: Final answer
x = 384,484.45
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1.5x scale
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.