Finding the Fourth Proportional to 1,586,421.16, 2,378,737.49 and 521,177.20
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Solution
The fourth proportional to 1,586,421.16, 2,378,737.49 and 521,177.20 is: 781,472.02
Step by Step Solution
- Step 1: Write the proportion equation
1,586,421.16 : 2,378,737.49 = 521,177.20 : x - Step 2: Convert to fraction form
1,586,421.16/2,378,737.49 = 521,177.20/x - Step 3: Cross multiply
1,586,421.16x = 2,378,737.49 × 521,177.20 - Step 4: Simplify right side
1,586,421.16x = 1,239,743,744,573.23 - Step 5: Solve for x
x = 1,239,743,744,573.23/1,586,421.16 - Step 6: Final answer
x = 781,472.02
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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.