Finding the Fourth Proportional to 1,438,908.09, 1,985,641.12 and 794,314.44
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Solution
The fourth proportional to 1,438,908.09, 1,985,641.12 and 794,314.44 is: 1,096,125.20
Step by Step Solution
- Step 1: Write the proportion equation
1,438,908.09 : 1,985,641.12 = 794,314.44 : x - Step 2: Convert to fraction form
1,438,908.09/1,985,641.12 = 794,314.44/x - Step 3: Cross multiply
1,438,908.09x = 1,985,641.12 × 794,314.44 - Step 4: Simplify right side
1,438,908.09x = 1,577,223,412,287.99 - Step 5: Solve for x
x = 1,577,223,412,287.99/1,438,908.09 - Step 6: Final answer
x = 1,096,125.20
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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.