Finding the Fourth Proportional to 1,680,687.12, 2,521,029.40 and 498,735.12
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Solution
The fourth proportional to 1,680,687.12, 2,521,029.40 and 498,735.12 is: 748,102.30
Step by Step Solution
- Step 1: Write the proportion equation
1,680,687.12 : 2,521,029.40 = 498,735.12 : x - Step 2: Convert to fraction form
1,680,687.12/2,521,029.40 = 498,735.12/x - Step 3: Cross multiply
1,680,687.12x = 2,521,029.40 × 498,735.12 - Step 4: Simplify right side
1,680,687.12x = 1,257,325,900,332.53 - Step 5: Solve for x
x = 1,257,325,900,332.53/1,680,687.12 - Step 6: Final answer
x = 748,102.30
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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.