Finding the Fourth Proportional to 1,162,697.69, 1,604,541.47 and 639,428.99
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Solution
The fourth proportional to 1,162,697.69, 1,604,541.47 and 639,428.99 is: 882,422.26
Step by Step Solution
- Step 1: Write the proportion equation
1,162,697.69 : 1,604,541.47 = 639,428.99 : x - Step 2: Convert to fraction form
1,162,697.69/1,604,541.47 = 639,428.99/x - Step 3: Cross multiply
1,162,697.69x = 1,604,541.47 × 639,428.99 - Step 4: Simplify right side
1,162,697.69x = 1,025,990,325,151.08 - Step 5: Solve for x
x = 1,025,990,325,151.08/1,162,697.69 - Step 6: Final answer
x = 882,422.26
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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.