Finding the Fourth Proportional to 771,318.86, 1,157,415.75 and 416,325.02
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Solution
The fourth proportional to 771,318.86, 1,157,415.75 and 416,325.02 is: 624,723.65
Step by Step Solution
- Step 1: Write the proportion equation
771,318.86 : 1,157,415.75 = 416,325.02 : x - Step 2: Convert to fraction form
771,318.86/1,157,415.75 = 416,325.02/x - Step 3: Cross multiply
771,318.86x = 1,157,415.75 × 416,325.02 - Step 4: Simplify right side
771,318.86x = 481,861,129,479.99 - Step 5: Solve for x
x = 481,861,129,479.99/771,318.86 - Step 6: Final answer
x = 624,723.65
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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.