Finding the Fourth Proportional to 985,274.70, 1,477,903.13 and 311,356.12
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Solution
The fourth proportional to 985,274.70, 1,477,903.13 and 311,356.12 is: 467,031.36
Step by Step Solution
- Step 1: Write the proportion equation
985,274.70 : 1,477,903.13 = 311,356.12 : x - Step 2: Convert to fraction form
985,274.70/1,477,903.13 = 311,356.12/x - Step 3: Cross multiply
985,274.70x = 1,477,903.13 × 311,356.12 - Step 4: Simplify right side
985,274.70x = 460,154,184,292.66 - Step 5: Solve for x
x = 460,154,184,292.66/985,274.70 - Step 6: Final answer
x = 467,031.36
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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.