Finding the Fourth Proportional to 408,859.40, 612,122.70 and 362,203.40
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Solution
The fourth proportional to 408,859.40, 612,122.70 and 362,203.40 is: 542,271.80
Step by Step Solution
- Step 1: Write the proportion equation
408,859.40 : 612,122.70 = 362,203.40 : x - Step 2: Convert to fraction form
408,859.40/612,122.70 = 362,203.40/x - Step 3: Cross multiply
408,859.40x = 612,122.70 × 362,203.40 - Step 4: Simplify right side
408,859.40x = 221,712,923,157.18 - Step 5: Solve for x
x = 221,712,923,157.18/408,859.40 - Step 6: Final answer
x = 542,271.80
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1.5x scale
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.