Finding the Fourth Proportional to 998,440.30, 1,497,660.45 and 620,526.70
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Solution
The fourth proportional to 998,440.30, 1,497,660.45 and 620,526.70 is: 930,790.05
Step by Step Solution
- Step 1: Write the proportion equation
998,440.30 : 1,497,660.45 = 620,526.70 : x - Step 2: Convert to fraction form
998,440.30/1,497,660.45 = 620,526.70/x - Step 3: Cross multiply
998,440.30x = 1,497,660.45 × 620,526.70 - Step 4: Simplify right side
998,440.30x = 929,338,296,759.02 - Step 5: Solve for x
x = 929,338,296,759.02/998,440.30 - Step 6: Final answer
x = 930,790.05
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1.5x scale
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.