Finding the Fourth Proportional to 453,702.70, 680,554.05 and 318,400.30
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Solution
The fourth proportional to 453,702.70, 680,554.05 and 318,400.30 is: 477,600.45
Step by Step Solution
- Step 1: Write the proportion equation
453,702.70 : 680,554.05 = 318,400.30 : x - Step 2: Convert to fraction form
453,702.70/680,554.05 = 318,400.30/x - Step 3: Cross multiply
453,702.70x = 680,554.05 × 318,400.30 - Step 4: Simplify right side
453,702.70x = 216,688,613,686.22 - Step 5: Solve for x
x = 216,688,613,686.22/453,702.70 - Step 6: Final answer
x = 477,600.45
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Similar ratio
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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.