Finding the Fourth Proportional to 734,777.10, 1,014,037.79 and 489,341.03
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Solution
The fourth proportional to 734,777.10, 1,014,037.79 and 489,341.03 is: 675,320.84
Step by Step Solution
- Step 1: Write the proportion equation
734,777.10 : 1,014,037.79 = 489,341.03 : x - Step 2: Convert to fraction form
734,777.10/1,014,037.79 = 489,341.03/x - Step 3: Cross multiply
734,777.10x = 1,014,037.79 × 489,341.03 - Step 4: Simplify right side
734,777.10x = 496,210,289,100.63 - Step 5: Solve for x
x = 496,210,289,100.63/734,777.10 - Step 6: Final answer
x = 675,320.84
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1.5x scale
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.