Finding the Fourth Proportional to 689,711.70, 1,033,951.95 and 268,889.70
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Solution
The fourth proportional to 689,711.70, 1,033,951.95 and 268,889.70 is: 403,094.55
Step by Step Solution
- Step 1: Write the proportion equation
689,711.70 : 1,033,951.95 = 268,889.70 : x - Step 2: Convert to fraction form
689,711.70/1,033,951.95 = 268,889.70/x - Step 3: Cross multiply
689,711.70x = 1,033,951.95 × 268,889.70 - Step 4: Simplify right side
689,711.70x = 278,019,029,649.92 - Step 5: Solve for x
x = 278,019,029,649.92/689,711.70 - Step 6: Final answer
x = 403,094.55
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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.