Finding the Fourth Proportional to 523,778.40, 722,778.84 and 308,908.08
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Solution
The fourth proportional to 523,778.40, 722,778.84 and 308,908.08 is: 426,272.30
Step by Step Solution
- Step 1: Write the proportion equation
523,778.40 : 722,778.84 = 308,908.08 : x - Step 2: Convert to fraction form
523,778.40/722,778.84 = 308,908.08/x - Step 3: Cross multiply
523,778.40x = 722,778.84 × 308,908.08 - Step 4: Simplify right side
523,778.40x = 223,272,223,729.03 - Step 5: Solve for x
x = 223,272,223,729.03/523,778.40 - Step 6: Final answer
x = 426,272.30
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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.