Finding the Fourth Proportional to 659,407.23, 989,183.14 and 209,970.23
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Solution
The fourth proportional to 659,407.23, 989,183.14 and 209,970.23 is: 314,978.36
Step by Step Solution
- Step 1: Write the proportion equation
659,407.23 : 989,183.14 = 209,970.23 : x - Step 2: Convert to fraction form
659,407.23/989,183.14 = 209,970.23/x - Step 3: Cross multiply
659,407.23x = 989,183.14 × 209,970.23 - Step 4: Simplify right side
659,407.23x = 207,699,005,947.08 - Step 5: Solve for x
x = 207,699,005,947.08/659,407.23 - Step 6: Final answer
x = 314,978.36
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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.