Finding the Fourth Proportional to 465,294.09, 697,989.66 and 128,334.80
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Solution
The fourth proportional to 465,294.09, 697,989.66 and 128,334.80 is: 192,515.58
Step by Step Solution
- Step 1: Write the proportion equation
465,294.09 : 697,989.66 = 128,334.80 : x - Step 2: Convert to fraction form
465,294.09/697,989.66 = 128,334.80/x - Step 3: Cross multiply
465,294.09x = 697,989.66 × 128,334.80 - Step 4: Simplify right side
465,294.09x = 89,576,359,286.55 - Step 5: Solve for x
x = 89,576,359,286.55/465,294.09 - Step 6: Final answer
x = 192,515.58
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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.