Finding the Fourth Proportional to 775,428.98, 1,069,933.80 and 453,076.73
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Solution
The fourth proportional to 775,428.98, 1,069,933.80 and 453,076.73 is: 625,153.45
Step by Step Solution
- Step 1: Write the proportion equation
775,428.98 : 1,069,933.80 = 453,076.73 : x - Step 2: Convert to fraction form
775,428.98/1,069,933.80 = 453,076.73/x - Step 3: Cross multiply
775,428.98x = 1,069,933.80 × 453,076.73 - Step 4: Simplify right side
775,428.98x = 484,762,102,070.81 - Step 5: Solve for x
x = 484,762,102,070.81/775,428.98 - Step 6: Final answer
x = 625,153.45
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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.