Finding the Fourth Proportional to 685,753.68, 1,028,794.68 and 286,172.16
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Solution
The fourth proportional to 685,753.68, 1,028,794.68 and 286,172.16 is: 429,326.75
Step by Step Solution
- Step 1: Write the proportion equation
685,753.68 : 1,028,794.68 = 286,172.16 : x - Step 2: Convert to fraction form
685,753.68/1,028,794.68 = 286,172.16/x - Step 3: Cross multiply
685,753.68x = 1,028,794.68 × 286,172.16 - Step 4: Simplify right side
685,753.68x = 294,412,395,772.11 - Step 5: Solve for x
x = 294,412,395,772.11/685,753.68 - Step 6: Final answer
x = 429,326.75
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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.