Finding the Fourth Proportional to 770,985.70, 1,156,478.55 and 202,365.70
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Solution
The fourth proportional to 770,985.70, 1,156,478.55 and 202,365.70 is: 303,548.55
Step by Step Solution
- Step 1: Write the proportion equation
770,985.70 : 1,156,478.55 = 202,365.70 : x - Step 2: Convert to fraction form
770,985.70/1,156,478.55 = 202,365.70/x - Step 3: Cross multiply
770,985.70x = 1,156,478.55 × 202,365.70 - Step 4: Simplify right side
770,985.70x = 234,031,591,305.74 - Step 5: Solve for x
x = 234,031,591,305.74/770,985.70 - Step 6: Final answer
x = 303,548.55
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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.