Finding the Fourth Proportional to 1,772,987.12, 2,659,480.56 and 443,291.12
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Solution
The fourth proportional to 1,772,987.12, 2,659,480.56 and 443,291.12 is: 664,936.65
Step by Step Solution
- Step 1: Write the proportion equation
1,772,987.12 : 2,659,480.56 = 443,291.12 : x - Step 2: Convert to fraction form
1,772,987.12/2,659,480.56 = 443,291.12/x - Step 3: Cross multiply
1,772,987.12x = 2,659,480.56 × 443,291.12 - Step 4: Simplify right side
1,772,987.12x = 1,178,924,116,060.63 - Step 5: Solve for x
x = 1,178,924,116,060.63/1,772,987.12 - Step 6: Final answer
x = 664,936.65
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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.