Finding the Fourth Proportional to 525,406.08, 725,077.76 and 286,942.08
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Solution
The fourth proportional to 525,406.08, 725,077.76 and 286,942.08 is: 395,989.56
Step by Step Solution
- Step 1: Write the proportion equation
525,406.08 : 725,077.76 = 286,942.08 : x - Step 2: Convert to fraction form
525,406.08/725,077.76 = 286,942.08/x - Step 3: Cross multiply
525,406.08x = 725,077.76 × 286,942.08 - Step 4: Simplify right side
525,406.08x = 208,055,320,616.14 - Step 5: Solve for x
x = 208,055,320,616.14/525,406.08 - Step 6: Final answer
x = 395,989.56
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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.