Finding the Fourth Proportional to 1,438,113.99, 1,985,315.81 and 894,425.04
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Solution
The fourth proportional to 1,438,113.99, 1,985,315.81 and 894,425.04 is: 1,234,753.42
Step by Step Solution
- Step 1: Write the proportion equation
1,438,113.99 : 1,985,315.81 = 894,425.04 : x - Step 2: Convert to fraction form
1,438,113.99/1,985,315.81 = 894,425.04/x - Step 3: Cross multiply
1,438,113.99x = 1,985,315.81 × 894,425.04 - Step 4: Simplify right side
1,438,113.99x = 1,775,716,172,771.88 - Step 5: Solve for x
x = 1,775,716,172,771.88/1,438,113.99 - Step 6: Final answer
x = 1,234,753.42
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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.