Finding the Fourth Proportional to 506,576.99, 699,007.78 and 288,813.76
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Solution
The fourth proportional to 506,576.99, 699,007.78 and 288,813.76 is: 398,523.95
Step by Step Solution
- Step 1: Write the proportion equation
506,576.99 : 699,007.78 = 288,813.76 : x - Step 2: Convert to fraction form
506,576.99/699,007.78 = 288,813.76/x - Step 3: Cross multiply
506,576.99x = 699,007.78 × 288,813.76 - Step 4: Simplify right side
506,576.99x = 201,883,065,211.05 - Step 5: Solve for x
x = 201,883,065,211.05/506,576.99 - Step 6: Final answer
x = 398,523.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.