Finding the Fourth Proportional to 912,609.70, 1,368,809.98 and 238,756.05
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Solution
The fourth proportional to 912,609.70, 1,368,809.98 and 238,756.05 is: 358,106.72
Step by Step Solution
- Step 1: Write the proportion equation
912,609.70 : 1,368,809.98 = 238,756.05 : x - Step 2: Convert to fraction form
912,609.70/1,368,809.98 = 238,756.05/x - Step 3: Cross multiply
912,609.70x = 1,368,809.98 × 238,756.05 - Step 4: Simplify right side
912,609.70x = 326,811,664,025.38 - Step 5: Solve for x
x = 326,811,664,025.38/912,609.70 - Step 6: Final answer
x = 358,106.72
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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.