Finding the Fourth Proportional to 493,625.80, 740,438.70 and 283,090.60
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Solution
The fourth proportional to 493,625.80, 740,438.70 and 283,090.60 is: 424,635.90
Step by Step Solution
- Step 1: Write the proportion equation
493,625.80 : 740,438.70 = 283,090.60 : x - Step 2: Convert to fraction form
493,625.80/740,438.70 = 283,090.60/x - Step 3: Cross multiply
493,625.80x = 740,438.70 × 283,090.60 - Step 4: Simplify right side
493,625.80x = 209,611,235,846.22 - Step 5: Solve for x
x = 209,611,235,846.22/493,625.80 - Step 6: Final answer
x = 424,635.90
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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.