Finding the Fourth Proportional to 1,787,962.49, 2,467,369.67 and 1,331,120.06
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Solution
The fourth proportional to 1,787,962.49, 2,467,369.67 and 1,331,120.06 is: 1,836,931.86
Step by Step Solution
- Step 1: Write the proportion equation
1,787,962.49 : 2,467,369.67 = 1,331,120.06 : x - Step 2: Convert to fraction form
1,787,962.49/2,467,369.67 = 1,331,120.06/x - Step 3: Cross multiply
1,787,962.49x = 2,467,369.67 × 1,331,120.06 - Step 4: Simplify right side
1,787,962.49x = 3,284,365,254,163.53 - Step 5: Solve for x
x = 3,284,365,254,163.53/1,787,962.49 - Step 6: Final answer
x = 1,836,931.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.