Finding the Fourth Proportional to 811,739.34, 1,120,201.59 and 449,178.48
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Solution
The fourth proportional to 811,739.34, 1,120,201.59 and 449,178.48 is: 619,867.02
Step by Step Solution
- Step 1: Write the proportion equation
811,739.34 : 1,120,201.59 = 449,178.48 : x - Step 2: Convert to fraction form
811,739.34/1,120,201.59 = 449,178.48/x - Step 3: Cross multiply
811,739.34x = 1,120,201.59 × 449,178.48 - Step 4: Simplify right side
811,739.34x = 503,170,447,489.78 - Step 5: Solve for x
x = 503,170,447,489.78/811,739.34 - Step 6: Final answer
x = 619,867.02
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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.