Finding the Fourth Proportional to 2,259,720.48, 3,117,655.52 and 1,279,525.55
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Solution
The fourth proportional to 2,259,720.48, 3,117,655.52 and 1,279,525.55 is: 1,765,315.63
Step by Step Solution
- Step 1: Write the proportion equation
2,259,720.48 : 3,117,655.52 = 1,279,525.55 : x - Step 2: Convert to fraction form
2,259,720.48/3,117,655.52 = 1,279,525.55/x - Step 3: Cross multiply
2,259,720.48x = 3,117,655.52 × 1,279,525.55 - Step 4: Simplify right side
2,259,720.48x = 3,989,119,871,952.63 - Step 5: Solve for x
x = 3,989,119,871,952.63/2,259,720.48 - Step 6: Final answer
x = 1,765,315.63
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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.