Finding the Fourth Proportional to 939,425.76, 1,296,391.20 and 571,770
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Solution
The fourth proportional to 939,425.76, 1,296,391.20 and 571,770 is: 789,032.65
Step by Step Solution
- Step 1: Write the proportion equation
939,425.76 : 1,296,391.20 = 571,770 : x - Step 2: Convert to fraction form
939,425.76/1,296,391.20 = 571,770/x - Step 3: Cross multiply
939,425.76x = 1,296,391.20 × 571,770 - Step 4: Simplify right side
939,425.76x = 741,237,596,424 - Step 5: Solve for x
x = 741,237,596,424/939,425.76 - Step 6: Final answer
x = 789,032.65
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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.