Finding the Fourth Proportional to 453,042.08, 679,472.40 and 430,560.80
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Solution
The fourth proportional to 453,042.08, 679,472.40 and 430,560.80 is: 645,754.98
Step by Step Solution
- Step 1: Write the proportion equation
453,042.08 : 679,472.40 = 430,560.80 : x - Step 2: Convert to fraction form
453,042.08/679,472.40 = 430,560.80/x - Step 3: Cross multiply
453,042.08x = 679,472.40 × 430,560.80 - Step 4: Simplify right side
453,042.08x = 292,554,180,121.92 - Step 5: Solve for x
x = 292,554,180,121.92/453,042.08 - Step 6: Final answer
x = 645,754.98
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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.