Finding the Fourth Proportional to 843,913.32, 1,163,206.74 and 628,974.96
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Solution
The fourth proportional to 843,913.32, 1,163,206.74 and 628,974.96 is: 866,946.75
Step by Step Solution
- Step 1: Write the proportion equation
843,913.32 : 1,163,206.74 = 628,974.96 : x - Step 2: Convert to fraction form
843,913.32/1,163,206.74 = 628,974.96/x - Step 3: Cross multiply
843,913.32x = 1,163,206.74 × 628,974.96 - Step 4: Simplify right side
843,913.32x = 731,627,912,763.23 - Step 5: Solve for x
x = 731,627,912,763.23/843,913.32 - Step 6: Final answer
x = 866,946.75
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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.