Finding the Fourth Proportional to 385,866.18, 578,821.14 and 119,664.54
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Solution
The fourth proportional to 385,866.18, 578,821.14 and 119,664.54 is: 179,503.59
Step by Step Solution
- Step 1: Write the proportion equation
385,866.18 : 578,821.14 = 119,664.54 : x - Step 2: Convert to fraction form
385,866.18/578,821.14 = 119,664.54/x - Step 3: Cross multiply
385,866.18x = 578,821.14 × 119,664.54 - Step 4: Simplify right side
385,866.18x = 69,264,365,460.38 - Step 5: Solve for x
x = 69,264,365,460.38/385,866.18 - Step 6: Final answer
x = 179,503.59
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.