Finding the Fourth Proportional to 1,239,545.28, 1,710,576.05 and 688,262.18
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Solution
The fourth proportional to 1,239,545.28, 1,710,576.05 and 688,262.18 is: 949,803.78
Step by Step Solution
- Step 1: Write the proportion equation
1,239,545.28 : 1,710,576.05 = 688,262.18 : x - Step 2: Convert to fraction form
1,239,545.28/1,710,576.05 = 688,262.18/x - Step 3: Cross multiply
1,239,545.28x = 1,710,576.05 × 688,262.18 - Step 4: Simplify right side
1,239,545.28x = 1,177,324,789,234.60 - Step 5: Solve for x
x = 1,177,324,789,234.60/1,239,545.28 - Step 6: Final answer
x = 949,803.78
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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.