Finding the Fourth Proportional to 453,709.70, 680,564.55 and 121,285.70
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Solution
The fourth proportional to 453,709.70, 680,564.55 and 121,285.70 is: 181,928.55
Step by Step Solution
- Step 1: Write the proportion equation
453,709.70 : 680,564.55 = 121,285.70 : x - Step 2: Convert to fraction form
453,709.70/680,564.55 = 121,285.70/x - Step 3: Cross multiply
453,709.70x = 680,564.55 × 121,285.70 - Step 4: Simplify right side
453,709.70x = 82,542,747,841.94 - Step 5: Solve for x
x = 82,542,747,841.94/453,709.70 - Step 6: Final answer
x = 181,928.55
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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.