Finding the Fourth Proportional to 685,409.01, 1,028,359.53 and 306,298.05
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Solution
The fourth proportional to 685,409.01, 1,028,359.53 and 306,298.05 is: 459,557.02
Step by Step Solution
- Step 1: Write the proportion equation
685,409.01 : 1,028,359.53 = 306,298.05 : x - Step 2: Convert to fraction form
685,409.01/1,028,359.53 = 306,298.05/x - Step 3: Cross multiply
685,409.01x = 1,028,359.53 × 306,298.05 - Step 4: Simplify right side
685,409.01x = 314,984,518,737.92 - Step 5: Solve for x
x = 314,984,518,737.92/685,409.01 - Step 6: Final answer
x = 459,557.02
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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.