Finding the Fourth Proportional to 1,139,586.36, 1,572,676.74 and 656,139.48
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Solution
The fourth proportional to 1,139,586.36, 1,572,676.74 and 656,139.48 is: 905,499.87
Step by Step Solution
- Step 1: Write the proportion equation
1,139,586.36 : 1,572,676.74 = 656,139.48 : x - Step 2: Convert to fraction form
1,139,586.36/1,572,676.74 = 656,139.48/x - Step 3: Cross multiply
1,139,586.36x = 1,572,676.74 × 656,139.48 - Step 4: Simplify right side
1,139,586.36x = 1,031,895,298,391.70 - Step 5: Solve for x
x = 1,031,895,298,391.70/1,139,586.36 - Step 6: Final answer
x = 905,499.87
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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.