Finding the Fourth Proportional to 508,420.80, 762,400.80 and 192,772.80
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Solution
The fourth proportional to 508,420.80, 762,400.80 and 192,772.80 is: 289,071.84
Step by Step Solution
- Step 1: Write the proportion equation
508,420.80 : 762,400.80 = 192,772.80 : x - Step 2: Convert to fraction form
508,420.80/762,400.80 = 192,772.80/x - Step 3: Cross multiply
508,420.80x = 762,400.80 × 192,772.80 - Step 4: Simplify right side
508,420.80x = 146,970,136,938.24 - Step 5: Solve for x
x = 146,970,136,938.24/508,420.80 - Step 6: Final answer
x = 289,071.84
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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.