Finding the Fourth Proportional to 624,340.55, 861,497.28 and 379,197.74
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Solution
The fourth proportional to 624,340.55, 861,497.28 and 379,197.74 is: 523,236.59
Step by Step Solution
- Step 1: Write the proportion equation
624,340.55 : 861,497.28 = 379,197.74 : x - Step 2: Convert to fraction form
624,340.55/861,497.28 = 379,197.74/x - Step 3: Cross multiply
624,340.55x = 861,497.28 × 379,197.74 - Step 4: Simplify right side
624,340.55x = 326,677,823,745.89 - Step 5: Solve for x
x = 326,677,823,745.89/624,340.55 - Step 6: Final answer
x = 523,236.59
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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.