Finding the Fourth Proportional to 664,835.65, 990,929.09 and 626,998.12
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Solution
The fourth proportional to 664,835.65, 990,929.09 and 626,998.12 is: 934,532.73
Step by Step Solution
- Step 1: Write the proportion equation
664,835.65 : 990,929.09 = 626,998.12 : x - Step 2: Convert to fraction form
664,835.65/990,929.09 = 626,998.12/x - Step 3: Cross multiply
664,835.65x = 990,929.09 × 626,998.12 - Step 4: Simplify right side
664,835.65x = 621,310,675,573.48 - Step 5: Solve for x
x = 621,310,675,573.48/664,835.65 - Step 6: Final answer
x = 934,532.73
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.