Finding the Fourth Proportional to 828,126.30, 1,242,189.63 and 259,507.29
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Solution
The fourth proportional to 828,126.30, 1,242,189.63 and 259,507.29 is: 389,260.99
Step by Step Solution
- Step 1: Write the proportion equation
828,126.30 : 1,242,189.63 = 259,507.29 : x - Step 2: Convert to fraction form
828,126.30/1,242,189.63 = 259,507.29/x - Step 3: Cross multiply
828,126.30x = 1,242,189.63 × 259,507.29 - Step 4: Simplify right side
828,126.30x = 322,357,264,547.40 - Step 5: Solve for x
x = 322,357,264,547.40/828,126.30 - Step 6: Final answer
x = 389,260.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.