Finding the Fourth Proportional to 623,603.36, 859,998.56 and 408,665.36
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Solution
The fourth proportional to 623,603.36, 859,998.56 and 408,665.36 is: 563,581.99
Step by Step Solution
- Step 1: Write the proportion equation
623,603.36 : 859,998.56 = 408,665.36 : x - Step 2: Convert to fraction form
623,603.36/859,998.56 = 408,665.36/x - Step 3: Cross multiply
623,603.36x = 859,998.56 × 408,665.36 - Step 4: Simplify right side
623,603.36x = 351,451,621,121.88 - Step 5: Solve for x
x = 351,451,621,121.88/623,603.36 - Step 6: Final answer
x = 563,581.99
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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.