Finding the Fourth Proportional to 1,438,982.08, 2,156,658.40 and 729,188.80
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Solution
The fourth proportional to 1,438,982.08, 2,156,658.40 and 729,188.80 is: 1,092,863.61
Step by Step Solution
- Step 1: Write the proportion equation
1,438,982.08 : 2,156,658.40 = 729,188.80 : x - Step 2: Convert to fraction form
1,438,982.08/2,156,658.40 = 729,188.80/x - Step 3: Cross multiply
1,438,982.08x = 2,156,658.40 × 729,188.80 - Step 4: Simplify right side
1,438,982.08x = 1,572,611,150,705.92 - Step 5: Solve for x
x = 1,572,611,150,705.92/1,438,982.08 - Step 6: Final answer
x = 1,092,863.61
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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.