Finding the Fourth Proportional to 827,352.20, 1,141,417.73 and 478,428.14
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Solution
The fourth proportional to 827,352.20, 1,141,417.73 and 478,428.14 is: 660,040.99
Step by Step Solution
- Step 1: Write the proportion equation
827,352.20 : 1,141,417.73 = 478,428.14 : x - Step 2: Convert to fraction form
827,352.20/1,141,417.73 = 478,428.14/x - Step 3: Cross multiply
827,352.20x = 1,141,417.73 × 478,428.14 - Step 4: Simplify right side
827,352.20x = 546,086,365,576.54 - Step 5: Solve for x
x = 546,086,365,576.54/827,352.20 - Step 6: Final answer
x = 660,040.99
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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.