Finding the Fourth Proportional to 769,130.20, 1,153,349.70 and 295,658.20
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Solution
The fourth proportional to 769,130.20, 1,153,349.70 and 295,658.20 is: 443,354.45
Step by Step Solution
- Step 1: Write the proportion equation
769,130.20 : 1,153,349.70 = 295,658.20 : x - Step 2: Convert to fraction form
769,130.20/1,153,349.70 = 295,658.20/x - Step 3: Cross multiply
769,130.20x = 1,153,349.70 × 295,658.20 - Step 4: Simplify right side
769,130.20x = 340,997,296,272.54 - Step 5: Solve for x
x = 340,997,296,272.54/769,130.20 - Step 6: Final answer
x = 443,354.45
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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.