Finding the Fourth Proportional to 998,363.19, 1,378,877.67 and 671,107.98
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Solution
The fourth proportional to 998,363.19, 1,378,877.67 and 671,107.98 is: 926,892.96
Step by Step Solution
- Step 1: Write the proportion equation
998,363.19 : 1,378,877.67 = 671,107.98 : x - Step 2: Convert to fraction form
998,363.19/1,378,877.67 = 671,107.98/x - Step 3: Cross multiply
998,363.19x = 1,378,877.67 × 671,107.98 - Step 4: Simplify right side
998,363.19x = 925,375,807,780.81 - Step 5: Solve for x
x = 925,375,807,780.81/998,363.19 - Step 6: Final answer
x = 926,892.96
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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.