Finding the Fourth Proportional to 518,790.25, 716,263.68 and 325,462.96
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Solution
The fourth proportional to 518,790.25, 716,263.68 and 325,462.96 is: 449,347.88
Step by Step Solution
- Step 1: Write the proportion equation
518,790.25 : 716,263.68 = 325,462.96 : x - Step 2: Convert to fraction form
518,790.25/716,263.68 = 325,462.96/x - Step 3: Cross multiply
518,790.25x = 716,263.68 × 325,462.96 - Step 4: Simplify right side
518,790.25x = 233,117,297,433.29 - Step 5: Solve for x
x = 233,117,297,433.29/518,790.25 - Step 6: Final answer
x = 449,347.88
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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.