Finding the Fourth Proportional to 518,995.08, 716,090.97 and 315,040.95
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Solution
The fourth proportional to 518,995.08, 716,090.97 and 315,040.95 is: 434,682.31
Step by Step Solution
- Step 1: Write the proportion equation
518,995.08 : 716,090.97 = 315,040.95 : x - Step 2: Convert to fraction form
518,995.08/716,090.97 = 315,040.95/x - Step 3: Cross multiply
518,995.08x = 716,090.97 × 315,040.95 - Step 4: Simplify right side
518,995.08x = 225,597,979,475.22 - Step 5: Solve for x
x = 225,597,979,475.22/518,995.08 - Step 6: Final answer
x = 434,682.31
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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.