Finding the Fourth Proportional to 486,955.80, 730,433.70 and 368,857.80
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Solution
The fourth proportional to 486,955.80, 730,433.70 and 368,857.80 is: 553,286.70
Step by Step Solution
- Step 1: Write the proportion equation
486,955.80 : 730,433.70 = 368,857.80 : x - Step 2: Convert to fraction form
486,955.80/730,433.70 = 368,857.80/x - Step 3: Cross multiply
486,955.80x = 730,433.70 × 368,857.80 - Step 4: Simplify right side
486,955.80x = 269,426,167,627.86 - Step 5: Solve for x
x = 269,426,167,627.86/486,955.80 - Step 6: Final answer
x = 553,286.70
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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.