Finding the Fourth Proportional to 769,570.70, 1,153,349.40 and 413,818.70
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Solution
The fourth proportional to 769,570.70, 1,153,349.40 and 413,818.70 is: 620,186.75
Step by Step Solution
- Step 1: Write the proportion equation
769,570.70 : 1,153,349.40 = 413,818.70 : x - Step 2: Convert to fraction form
769,570.70/1,153,349.40 = 413,818.70/x - Step 3: Cross multiply
769,570.70x = 1,153,349.40 × 413,818.70 - Step 4: Simplify right side
769,570.70x = 477,277,549,353.78 - Step 5: Solve for x
x = 477,277,549,353.78/769,570.70 - Step 6: Final answer
x = 620,186.75
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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.