Finding the Fourth Proportional to 612,992.19, 845,915.98 and 354,880.08
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Solution
The fourth proportional to 612,992.19, 845,915.98 and 354,880.08 is: 489,726.84
Step by Step Solution
- Step 1: Write the proportion equation
612,992.19 : 845,915.98 = 354,880.08 : x - Step 2: Convert to fraction form
612,992.19/845,915.98 = 354,880.08/x - Step 3: Cross multiply
612,992.19x = 845,915.98 × 354,880.08 - Step 4: Simplify right side
612,992.19x = 300,198,730,655.68 - Step 5: Solve for x
x = 300,198,730,655.68/612,992.19 - Step 6: Final answer
x = 489,726.84
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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.