Finding the Fourth Proportional to 790,119.68, 1,182,421.12 and 646,302.72
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Solution
The fourth proportional to 790,119.68, 1,182,421.12 and 646,302.72 is: 967,197.76
Step by Step Solution
- Step 1: Write the proportion equation
790,119.68 : 1,182,421.12 = 646,302.72 : x - Step 2: Convert to fraction form
790,119.68/1,182,421.12 = 646,302.72/x - Step 3: Cross multiply
790,119.68x = 1,182,421.12 × 646,302.72 - Step 4: Simplify right side
790,119.68x = 764,201,986,041.45 - Step 5: Solve for x
x = 764,201,986,041.45/790,119.68 - Step 6: Final answer
x = 967,197.76
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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.