Finding the Fourth Proportional to 636,491.09, 878,363.93 and 350,013.13
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Solution
The fourth proportional to 636,491.09, 878,363.93 and 350,013.13 is: 483,021.53
Step by Step Solution
- Step 1: Write the proportion equation
636,491.09 : 878,363.93 = 350,013.13 : x - Step 2: Convert to fraction form
636,491.09/878,363.93 = 350,013.13/x - Step 3: Cross multiply
636,491.09x = 878,363.93 × 350,013.13 - Step 4: Simplify right side
636,491.09x = 307,438,902,276.52 - Step 5: Solve for x
x = 307,438,902,276.52/636,491.09 - Step 6: Final answer
x = 483,021.53
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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.