Finding the Fourth Proportional to 1,438,020.34, 1,985,187.09 and 894,331.24
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Solution
The fourth proportional to 1,438,020.34, 1,985,187.09 and 894,331.24 is: 1,234,624.28
Step by Step Solution
- Step 1: Write the proportion equation
1,438,020.34 : 1,985,187.09 = 894,331.24 : x - Step 2: Convert to fraction form
1,438,020.34/1,985,187.09 = 894,331.24/x - Step 3: Cross multiply
1,438,020.34x = 1,985,187.09 × 894,331.24 - Step 4: Simplify right side
1,438,020.34x = 1,775,414,831,831.69 - Step 5: Solve for x
x = 1,775,414,831,831.69/1,438,020.34 - Step 6: Final answer
x = 1,234,624.28
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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.