Finding the Fourth Proportional to 989,878.13, 1,366,031.79 and 537,169.13
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Solution
The fourth proportional to 989,878.13, 1,366,031.79 and 537,169.13 is: 741,293.38
Step by Step Solution
- Step 1: Write the proportion equation
989,878.13 : 1,366,031.79 = 537,169.13 : x - Step 2: Convert to fraction form
989,878.13/1,366,031.79 = 537,169.13/x - Step 3: Cross multiply
989,878.13x = 1,366,031.79 × 537,169.13 - Step 4: Simplify right side
989,878.13x = 733,790,108,186.64 - Step 5: Solve for x
x = 733,790,108,186.64/989,878.13 - Step 6: Final answer
x = 741,293.38
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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.