Finding the Fourth Proportional to 453,909.70, 680,864.55 and 121,485.70
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Solution
The fourth proportional to 453,909.70, 680,864.55 and 121,485.70 is: 182,228.55
Step by Step Solution
- Step 1: Write the proportion equation
453,909.70 : 680,864.55 = 121,485.70 : x - Step 2: Convert to fraction form
453,909.70/680,864.55 = 121,485.70/x - Step 3: Cross multiply
453,909.70x = 680,864.55 × 121,485.70 - Step 4: Simplify right side
453,909.70x = 82,715,306,461.94 - Step 5: Solve for x
x = 82,715,306,461.94/453,909.70 - Step 6: Final answer
x = 182,228.55
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1.5x scale
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.