Finding the Fourth Proportional to 998,636.76, 1,378,118.74 and 545,927.76
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Solution
The fourth proportional to 998,636.76, 1,378,118.74 and 545,927.76 is: 753,380.31
Step by Step Solution
- Step 1: Write the proportion equation
998,636.76 : 1,378,118.74 = 545,927.76 : x - Step 2: Convert to fraction form
998,636.76/1,378,118.74 = 545,927.76/x - Step 3: Cross multiply
998,636.76x = 1,378,118.74 × 545,927.76 - Step 4: Simplify right side
998,636.76x = 752,353,276,742.22 - Step 5: Solve for x
x = 752,353,276,742.22/998,636.76 - Step 6: Final answer
x = 753,380.31
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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.