Finding the Fourth Proportional to 861,762.75, 1,292,645.49 and 355,768.40
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Solution
The fourth proportional to 861,762.75, 1,292,645.49 and 355,768.40 is: 533,653.17
Step by Step Solution
- Step 1: Write the proportion equation
861,762.75 : 1,292,645.49 = 355,768.40 : x - Step 2: Convert to fraction form
861,762.75/1,292,645.49 = 355,768.40/x - Step 3: Cross multiply
861,762.75x = 1,292,645.49 × 355,768.40 - Step 4: Simplify right side
861,762.75x = 459,882,419,642.00 - Step 5: Solve for x
x = 459,882,419,642.00/861,762.75 - Step 6: Final answer
x = 533,653.17
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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.