Finding the Fourth Proportional to 713,140.92, 984,142.17 and 390,844.08
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Solution
The fourth proportional to 713,140.92, 984,142.17 and 390,844.08 is: 539,369.05
Step by Step Solution
- Step 1: Write the proportion equation
713,140.92 : 984,142.17 = 390,844.08 : x - Step 2: Convert to fraction form
713,140.92/984,142.17 = 390,844.08/x - Step 3: Cross multiply
713,140.92x = 984,142.17 × 390,844.08 - Step 4: Simplify right side
713,140.92x = 384,646,141,022.85 - Step 5: Solve for x
x = 384,646,141,022.85/713,140.92 - Step 6: Final answer
x = 539,369.05
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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.