Finding the Fourth Proportional to 916,949.70, 1,375,424.55 and 668,117.70
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Solution
The fourth proportional to 916,949.70, 1,375,424.55 and 668,117.70 is: 1,002,176.55
Step by Step Solution
- Step 1: Write the proportion equation
916,949.70 : 1,375,424.55 = 668,117.70 : x - Step 2: Convert to fraction form
916,949.70/1,375,424.55 = 668,117.70/x - Step 3: Cross multiply
916,949.70x = 1,375,424.55 × 668,117.70 - Step 4: Simplify right side
916,949.70x = 918,945,486,869.54 - Step 5: Solve for x
x = 918,945,486,869.54/916,949.70 - Step 6: Final answer
x = 1,002,176.55
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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.