Finding the Fourth Proportional to 1,307,957.04, 1,804,922.64 and 764,143.20
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Solution
The fourth proportional to 1,307,957.04, 1,804,922.64 and 764,143.20 is: 1,054,483.69
Step by Step Solution
- Step 1: Write the proportion equation
1,307,957.04 : 1,804,922.64 = 764,143.20 : x - Step 2: Convert to fraction form
1,307,957.04/1,804,922.64 = 764,143.20/x - Step 3: Cross multiply
1,307,957.04x = 1,804,922.64 × 764,143.20 - Step 4: Simplify right side
1,307,957.04x = 1,379,219,361,882.05 - Step 5: Solve for x
x = 1,379,219,361,882.05/1,307,957.04 - Step 6: Final answer
x = 1,054,483.69
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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.