Finding the Fourth Proportional to 472,149.20, 708,223.80 and 440,814.80
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Solution
The fourth proportional to 472,149.20, 708,223.80 and 440,814.80 is: 661,222.20
Step by Step Solution
- Step 1: Write the proportion equation
472,149.20 : 708,223.80 = 440,814.80 : x - Step 2: Convert to fraction form
472,149.20/708,223.80 = 440,814.80/x - Step 3: Cross multiply
472,149.20x = 708,223.80 × 440,814.80 - Step 4: Simplify right side
472,149.20x = 312,195,532,752.24 - Step 5: Solve for x
x = 312,195,532,752.24/472,149.20 - Step 6: Final answer
x = 661,222.20
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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.