Finding the Fourth Proportional to 556,721.28, 834,337.44 and 289,921.68
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Solution
The fourth proportional to 556,721.28, 834,337.44 and 289,921.68 is: 434,494.82
Step by Step Solution
- Step 1: Write the proportion equation
556,721.28 : 834,337.44 = 289,921.68 : x - Step 2: Convert to fraction form
556,721.28/834,337.44 = 289,921.68/x - Step 3: Cross multiply
556,721.28x = 834,337.44 × 289,921.68 - Step 4: Simplify right side
556,721.28x = 241,892,512,291.70 - Step 5: Solve for x
x = 241,892,512,291.70/556,721.28 - Step 6: Final answer
x = 434,494.82
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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.