Finding the Fourth Proportional to 1,438,204.53, 2,157,381.14 and 1,365,479.28
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Solution
The fourth proportional to 1,438,204.53, 2,157,381.14 and 1,365,479.28 is: 2,048,289.50
Step by Step Solution
- Step 1: Write the proportion equation
1,438,204.53 : 2,157,381.14 = 1,365,479.28 : x - Step 2: Convert to fraction form
1,438,204.53/2,157,381.14 = 1,365,479.28/x - Step 3: Cross multiply
1,438,204.53x = 2,157,381.14 × 1,365,479.28 - Step 4: Simplify right side
1,438,204.53x = 2,945,859,238,905.38 - Step 5: Solve for x
x = 2,945,859,238,905.38/1,438,204.53 - Step 6: Final answer
x = 2,048,289.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.