Finding the Fourth Proportional to 636,534.86, 878,420.70 and 350,073.09
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Solution
The fourth proportional to 636,534.86, 878,420.70 and 350,073.09 is: 483,102.29
Step by Step Solution
- Step 1: Write the proportion equation
636,534.86 : 878,420.70 = 350,073.09 : x - Step 2: Convert to fraction form
636,534.86/878,420.70 = 350,073.09/x - Step 3: Cross multiply
636,534.86x = 878,420.70 × 350,073.09 - Step 4: Simplify right side
636,534.86x = 307,511,448,768.96 - Step 5: Solve for x
x = 307,511,448,768.96/636,534.86 - Step 6: Final answer
x = 483,102.29
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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.