Finding the Fourth Proportional to 771,700.80, 1,157,551.20 and 273,115.20
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Solution
The fourth proportional to 771,700.80, 1,157,551.20 and 273,115.20 is: 409,672.80
Step by Step Solution
- Step 1: Write the proportion equation
771,700.80 : 1,157,551.20 = 273,115.20 : x - Step 2: Convert to fraction form
771,700.80/1,157,551.20 = 273,115.20/x - Step 3: Cross multiply
771,700.80x = 1,157,551.20 × 273,115.20 - Step 4: Simplify right side
771,700.80x = 316,144,827,498.24 - Step 5: Solve for x
x = 316,144,827,498.24/771,700.80 - Step 6: Final answer
x = 409,672.80
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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.