Finding the Fourth Proportional to 756,077.20, 1,134,115.80 and 437,212.60
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Solution
The fourth proportional to 756,077.20, 1,134,115.80 and 437,212.60 is: 655,818.90
Step by Step Solution
- Step 1: Write the proportion equation
756,077.20 : 1,134,115.80 = 437,212.60 : x - Step 2: Convert to fraction form
756,077.20/1,134,115.80 = 437,212.60/x - Step 3: Cross multiply
756,077.20x = 1,134,115.80 × 437,212.60 - Step 4: Simplify right side
756,077.20x = 495,849,717,619.08 - Step 5: Solve for x
x = 495,849,717,619.08/756,077.20 - Step 6: Final answer
x = 655,818.90
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Similar ratio
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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.