Finding the Fourth Proportional to 3,122,237.68, 4,685,128.17 and 1,230,307.72
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Solution
The fourth proportional to 3,122,237.68, 4,685,128.17 and 1,230,307.72 is: 1,846,159.69
Step by Step Solution
- Step 1: Write the proportion equation
3,122,237.68 : 4,685,128.17 = 1,230,307.72 : x - Step 2: Convert to fraction form
3,122,237.68/4,685,128.17 = 1,230,307.72/x - Step 3: Cross multiply
3,122,237.68x = 4,685,128.17 × 1,230,307.72 - Step 4: Simplify right side
3,122,237.68x = 5,764,149,356,740.47 - Step 5: Solve for x
x = 5,764,149,356,740.47/3,122,237.68 - Step 6: Final answer
x = 1,846,159.69
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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.