Finding the Fourth Proportional to 734,319.92, 1,012,984.44 and 489,725.84
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Solution
The fourth proportional to 734,319.92, 1,012,984.44 and 489,725.84 is: 675,570.20
Step by Step Solution
- Step 1: Write the proportion equation
734,319.92 : 1,012,984.44 = 489,725.84 : x - Step 2: Convert to fraction form
734,319.92/1,012,984.44 = 489,725.84/x - Step 3: Cross multiply
734,319.92x = 1,012,984.44 × 489,725.84 - Step 4: Simplify right side
734,319.92x = 496,084,655,785.93 - Step 5: Solve for x
x = 496,084,655,785.93/734,319.92 - Step 6: Final answer
x = 675,570.20
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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.