Finding the Fourth Proportional to 643,833.53, 888,728.81 and 552,823.95
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Solution
The fourth proportional to 643,833.53, 888,728.81 and 552,823.95 is: 763,101.88
Step by Step Solution
- Step 1: Write the proportion equation
643,833.53 : 888,728.81 = 552,823.95 : x - Step 2: Convert to fraction form
643,833.53/888,728.81 = 552,823.95/x - Step 3: Cross multiply
643,833.53x = 888,728.81 × 552,823.95 - Step 4: Simplify right side
643,833.53x = 491,310,574,901.25 - Step 5: Solve for x
x = 491,310,574,901.25/643,833.53 - Step 6: Final answer
x = 763,101.88
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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.