Finding the Fourth Proportional to 740,489.68, 1,109,986.74 and 291,525.68
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Solution
The fourth proportional to 740,489.68, 1,109,986.74 and 291,525.68 is: 436,994.12
Step by Step Solution
- Step 1: Write the proportion equation
740,489.68 : 1,109,986.74 = 291,525.68 : x - Step 2: Convert to fraction form
740,489.68/1,109,986.74 = 291,525.68/x - Step 3: Cross multiply
740,489.68x = 1,109,986.74 × 291,525.68 - Step 4: Simplify right side
740,489.68x = 323,589,639,169.48 - Step 5: Solve for x
x = 323,589,639,169.48/740,489.68 - Step 6: Final answer
x = 436,994.12
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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.