Finding the Fourth Proportional to 1,390,134.04, 2,085,622.05 and 580,911.23
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Solution
The fourth proportional to 1,390,134.04, 2,085,622.05 and 580,911.23 is: 871,542.78
Step by Step Solution
- Step 1: Write the proportion equation
1,390,134.04 : 2,085,622.05 = 580,911.23 : x - Step 2: Convert to fraction form
1,390,134.04/2,085,622.05 = 580,911.23/x - Step 3: Cross multiply
1,390,134.04x = 2,085,622.05 × 580,911.23 - Step 4: Simplify right side
1,390,134.04x = 1,211,561,277,773.09 - Step 5: Solve for x
x = 1,211,561,277,773.09/1,390,134.04 - Step 6: Final answer
x = 871,542.78
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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.