Finding the Fourth Proportional to 644,166.69, 888,750.67 and 372,135.31
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Solution
The fourth proportional to 644,166.69, 888,750.67 and 372,135.31 is: 513,431.56
Step by Step Solution
- Step 1: Write the proportion equation
644,166.69 : 888,750.67 = 372,135.31 : x - Step 2: Convert to fraction form
644,166.69/888,750.67 = 372,135.31/x - Step 3: Cross multiply
644,166.69x = 888,750.67 × 372,135.31 - Step 4: Simplify right side
644,166.69x = 330,735,506,093.16 - Step 5: Solve for x
x = 330,735,506,093.16/644,166.69 - Step 6: Final answer
x = 513,431.56
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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.