Finding the Fourth Proportional to 998,437.26, 1,377,844.12 and 545,728.26
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Solution
The fourth proportional to 998,437.26, 1,377,844.12 and 545,728.26 is: 753,105.38
Step by Step Solution
- Step 1: Write the proportion equation
998,437.26 : 1,377,844.12 = 545,728.26 : x - Step 2: Convert to fraction form
998,437.26/1,377,844.12 = 545,728.26/x - Step 3: Cross multiply
998,437.26x = 1,377,844.12 × 545,728.26 - Step 4: Simplify right side
998,437.26x = 751,928,474,158.83 - Step 5: Solve for x
x = 751,928,474,158.83/998,437.26 - Step 6: Final answer
x = 753,105.38
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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.