Finding the Fourth Proportional to 1,438,907.18, 1,985,639.87 and 794,313.53
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Solution
The fourth proportional to 1,438,907.18, 1,985,639.87 and 794,313.53 is: 1,096,123.95
Step by Step Solution
- Step 1: Write the proportion equation
1,438,907.18 : 1,985,639.87 = 794,313.53 : x - Step 2: Convert to fraction form
1,438,907.18/1,985,639.87 = 794,313.53/x - Step 3: Cross multiply
1,438,907.18x = 1,985,639.87 × 794,313.53 - Step 4: Simplify right side
1,438,907.18x = 1,577,220,618,419.65 - Step 5: Solve for x
x = 1,577,220,618,419.65/1,438,907.18 - Step 6: Final answer
x = 1,096,123.95
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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.