Finding the Fourth Proportional to 753,014.88, 1,129,271.76 and 303,619.68
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Solution
The fourth proportional to 753,014.88, 1,129,271.76 and 303,619.68 is: 455,328.49
Step by Step Solution
- Step 1: Write the proportion equation
753,014.88 : 1,129,271.76 = 303,619.68 : x - Step 2: Convert to fraction form
753,014.88/1,129,271.76 = 303,619.68/x - Step 3: Cross multiply
753,014.88x = 1,129,271.76 × 303,619.68 - Step 4: Simplify right side
753,014.88x = 342,869,130,404.24 - Step 5: Solve for x
x = 342,869,130,404.24/753,014.88 - Step 6: Final answer
x = 455,328.49
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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.