Finding the Fourth Proportional to 947,622.12, 1,307,718.64 and 517,902.12
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Solution
The fourth proportional to 947,622.12, 1,307,718.64 and 517,902.12 is: 714,704.99
Step by Step Solution
- Step 1: Write the proportion equation
947,622.12 : 1,307,718.64 = 517,902.12 : x - Step 2: Convert to fraction form
947,622.12/1,307,718.64 = 517,902.12/x - Step 3: Cross multiply
947,622.12x = 1,307,718.64 × 517,902.12 - Step 4: Simplify right side
947,622.12x = 677,270,256,019.52 - Step 5: Solve for x
x = 677,270,256,019.52/947,622.12 - Step 6: Final answer
x = 714,704.99
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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.