Finding the Fourth Proportional to 3,011,529.48, 4,155,472.18 and 1,722,120.75
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Solution
The fourth proportional to 3,011,529.48, 4,155,472.18 and 1,722,120.75 is: 2,376,275.88
Step by Step Solution
- Step 1: Write the proportion equation
3,011,529.48 : 4,155,472.18 = 1,722,120.75 : x - Step 2: Convert to fraction form
3,011,529.48/4,155,472.18 = 1,722,120.75/x - Step 3: Cross multiply
3,011,529.48x = 4,155,472.18 × 1,722,120.75 - Step 4: Simplify right side
3,011,529.48x = 7,156,224,859,691.46 - Step 5: Solve for x
x = 7,156,224,859,691.46/3,011,529.48 - Step 6: Final answer
x = 2,376,275.88
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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.