Finding the Fourth Proportional to 563,139.99, 777,152.61 and 308,491.20
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Solution
The fourth proportional to 563,139.99, 777,152.61 and 308,491.20 is: 425,728.50
Step by Step Solution
- Step 1: Write the proportion equation
563,139.99 : 777,152.61 = 308,491.20 : x - Step 2: Convert to fraction form
563,139.99/777,152.61 = 308,491.20/x - Step 3: Cross multiply
563,139.99x = 777,152.61 × 308,491.20 - Step 4: Simplify right side
563,139.99x = 239,744,741,242.03 - Step 5: Solve for x
x = 239,744,741,242.03/563,139.99 - Step 6: Final answer
x = 425,728.50
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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.