Finding the Fourth Proportional to 865,119.49, 1,298,143.99 and 360,028.69
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Solution
The fourth proportional to 865,119.49, 1,298,143.99 and 360,028.69 is: 540,236.45
Step by Step Solution
- Step 1: Write the proportion equation
865,119.49 : 1,298,143.99 = 360,028.69 : x - Step 2: Convert to fraction form
865,119.49/1,298,143.99 = 360,028.69/x - Step 3: Cross multiply
865,119.49x = 1,298,143.99 × 360,028.69 - Step 4: Simplify right side
865,119.49x = 467,369,077,355.75 - Step 5: Solve for x
x = 467,369,077,355.75/865,119.49 - Step 6: Final answer
x = 540,236.45
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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.