Finding the Fourth Proportional to 912,589.81, 1,368,916.54 and 313,546.62
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Solution
The fourth proportional to 912,589.81, 1,368,916.54 and 313,546.62 is: 470,330.86
Step by Step Solution
- Step 1: Write the proportion equation
912,589.81 : 1,368,916.54 = 313,546.62 : x - Step 2: Convert to fraction form
912,589.81/1,368,916.54 = 313,546.62/x - Step 3: Cross multiply
912,589.81x = 1,368,916.54 × 313,546.62 - Step 4: Simplify right side
912,589.81x = 429,219,154,179.10 - Step 5: Solve for x
x = 429,219,154,179.10/912,589.81 - Step 6: Final answer
x = 470,330.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.