Finding the Fourth Proportional to 989,900.98, 1,366,064.24 and 537,191.98
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Solution
The fourth proportional to 989,900.98, 1,366,064.24 and 537,191.98 is: 741,325.41
Step by Step Solution
- Step 1: Write the proportion equation
989,900.98 : 1,366,064.24 = 537,191.98 : x - Step 2: Convert to fraction form
989,900.98/1,366,064.24 = 537,191.98/x - Step 3: Cross multiply
989,900.98x = 1,366,064.24 × 537,191.98 - Step 4: Simplify right side
989,900.98x = 733,838,747,791.68 - Step 5: Solve for x
x = 733,838,747,791.68/989,900.98 - Step 6: Final answer
x = 741,325.41
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1.5x scale
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.