Finding the Fourth Proportional to 398,649.92, 549,798.48 and 336,863.12
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Solution
The fourth proportional to 398,649.92, 549,798.48 and 336,863.12 is: 464,585.15
Step by Step Solution
- Step 1: Write the proportion equation
398,649.92 : 549,798.48 = 336,863.12 : x - Step 2: Convert to fraction form
398,649.92/549,798.48 = 336,863.12/x - Step 3: Cross multiply
398,649.92x = 549,798.48 × 336,863.12 - Step 4: Simplify right side
398,649.92x = 185,206,831,344.06 - Step 5: Solve for x
x = 185,206,831,344.06/398,649.92 - Step 6: Final answer
x = 464,585.15
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.