Finding the Fourth Proportional to 998,563.20, 1,497,844.80 and 749,731.20
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Solution
The fourth proportional to 998,563.20, 1,497,844.80 and 749,731.20 is: 1,124,596.80
Step by Step Solution
- Step 1: Write the proportion equation
998,563.20 : 1,497,844.80 = 749,731.20 : x - Step 2: Convert to fraction form
998,563.20/1,497,844.80 = 749,731.20/x - Step 3: Cross multiply
998,563.20x = 1,497,844.80 × 749,731.20 - Step 4: Simplify right side
998,563.20x = 1,122,980,979,317.76 - Step 5: Solve for x
x = 1,122,980,979,317.76/998,563.20 - Step 6: Final answer
x = 1,124,596.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.