Finding the Fourth Proportional to 508,716.44, 702,031.42 and 317,840.55
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Solution
The fourth proportional to 508,716.44, 702,031.42 and 317,840.55 is: 438,621.67
Step by Step Solution
- Step 1: Write the proportion equation
508,716.44 : 702,031.42 = 317,840.55 : x - Step 2: Convert to fraction form
508,716.44/702,031.42 = 317,840.55/x - Step 3: Cross multiply
508,716.44x = 702,031.42 × 317,840.55 - Step 4: Simplify right side
508,716.44x = 223,134,052,650.08 - Step 5: Solve for x
x = 223,134,052,650.08/508,716.44 - Step 6: Final answer
x = 438,621.67
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1.5x scale
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.