Finding the Fourth Proportional to 513,008.70, 769,513.05 and 453,959.70
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Solution
The fourth proportional to 513,008.70, 769,513.05 and 453,959.70 is: 680,939.55
Step by Step Solution
- Step 1: Write the proportion equation
513,008.70 : 769,513.05 = 453,959.70 : x - Step 2: Convert to fraction form
513,008.70/769,513.05 = 453,959.70/x - Step 3: Cross multiply
513,008.70x = 769,513.05 × 453,959.70 - Step 4: Simplify right side
513,008.70x = 349,327,913,324.09 - Step 5: Solve for x
x = 349,327,913,324.09/513,008.70 - Step 6: Final answer
x = 680,939.55
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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.