Finding the Fourth Proportional to 1,201,785.99, 1,659,588.84 and 772,811.43
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Solution
The fourth proportional to 1,201,785.99, 1,659,588.84 and 772,811.43 is: 1,067,202.68
Step by Step Solution
- Step 1: Write the proportion equation
1,201,785.99 : 1,659,588.84 = 772,811.43 : x - Step 2: Convert to fraction form
1,201,785.99/1,659,588.84 = 772,811.43/x - Step 3: Cross multiply
1,201,785.99x = 1,659,588.84 × 772,811.43 - Step 4: Simplify right side
1,201,785.99x = 1,282,549,224,652.44 - Step 5: Solve for x
x = 1,282,549,224,652.44/1,201,785.99 - Step 6: Final answer
x = 1,067,202.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.