Finding the Fourth Proportional to 697,639.23, 962,708.49 and 391,677.93
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Solution
The fourth proportional to 697,639.23, 962,708.49 and 391,677.93 is: 540,496.65
Step by Step Solution
- Step 1: Write the proportion equation
697,639.23 : 962,708.49 = 391,677.93 : x - Step 2: Convert to fraction form
697,639.23/962,708.49 = 391,677.93/x - Step 3: Cross multiply
697,639.23x = 962,708.49 × 391,677.93 - Step 4: Simplify right side
697,639.23x = 377,071,668,556.63 - Step 5: Solve for x
x = 377,071,668,556.63/697,639.23 - Step 6: Final answer
x = 540,496.65
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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.