Finding the Fourth Proportional to 930,913.70, 1,396,370.55 and 887,611.10
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Solution
The fourth proportional to 930,913.70, 1,396,370.55 and 887,611.10 is: 1,331,416.65
Step by Step Solution
- Step 1: Write the proportion equation
930,913.70 : 1,396,370.55 = 887,611.10 : x - Step 2: Convert to fraction form
930,913.70/1,396,370.55 = 887,611.10/x - Step 3: Cross multiply
930,913.70x = 1,396,370.55 × 887,611.10 - Step 4: Simplify right side
930,913.70x = 1,239,433,999,893.11 - Step 5: Solve for x
x = 1,239,433,999,893.11/930,913.70 - Step 6: Final answer
x = 1,331,416.65
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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.