Finding the Fourth Proportional to 427,783.68, 590,316.12 and 236,785.68
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Solution
The fourth proportional to 427,783.68, 590,316.12 and 236,785.68 is: 326,750.20
Step by Step Solution
- Step 1: Write the proportion equation
427,783.68 : 590,316.12 = 236,785.68 : x - Step 2: Convert to fraction form
427,783.68/590,316.12 = 236,785.68/x - Step 3: Cross multiply
427,783.68x = 590,316.12 × 236,785.68 - Step 4: Simplify right side
427,783.68x = 139,778,403,889.16 - Step 5: Solve for x
x = 139,778,403,889.16/427,783.68 - Step 6: Final answer
x = 326,750.20
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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.