Finding the Fourth Proportional to 689,744.35, 1,033,562.51 and 290,166.09
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Solution
The fourth proportional to 689,744.35, 1,033,562.51 and 290,166.09 is: 434,805.73
Step by Step Solution
- Step 1: Write the proportion equation
689,744.35 : 1,033,562.51 = 290,166.09 : x - Step 2: Convert to fraction form
689,744.35/1,033,562.51 = 290,166.09/x - Step 3: Cross multiply
689,744.35x = 1,033,562.51 × 290,166.09 - Step 4: Simplify right side
689,744.35x = 299,904,792,297.29 - Step 5: Solve for x
x = 299,904,792,297.29/689,744.35 - Step 6: Final answer
x = 434,805.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.