Finding the Fourth Proportional to 434,688.11, 599,318.35 and 310,657.30
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Solution
The fourth proportional to 434,688.11, 599,318.35 and 310,657.30 is: 428,313.12
Step by Step Solution
- Step 1: Write the proportion equation
434,688.11 : 599,318.35 = 310,657.30 : x - Step 2: Convert to fraction form
434,688.11/599,318.35 = 310,657.30/x - Step 3: Cross multiply
434,688.11x = 599,318.35 × 310,657.30 - Step 4: Simplify right side
434,688.11x = 186,182,623,295.13 - Step 5: Solve for x
x = 186,182,623,295.13/434,688.11 - Step 6: Final answer
x = 428,313.12
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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.