Finding the Fourth Proportional to 998,117.12, 1,377,435.60 and 545,437.28
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Solution
The fourth proportional to 998,117.12, 1,377,435.60 and 545,437.28 is: 752,722.01
Step by Step Solution
- Step 1: Write the proportion equation
998,117.12 : 1,377,435.60 = 545,437.28 : x - Step 2: Convert to fraction form
998,117.12/1,377,435.60 = 545,437.28/x - Step 3: Cross multiply
998,117.12x = 1,377,435.60 × 545,437.28 - Step 4: Simplify right side
998,117.12x = 751,304,727,039.17 - Step 5: Solve for x
x = 751,304,727,039.17/998,117.12 - Step 6: Final answer
x = 752,722.01
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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.