Finding the Fourth Proportional to 908,768.70, 1,363,153.05 and 731,621.70
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Solution
The fourth proportional to 908,768.70, 1,363,153.05 and 731,621.70 is: 1,097,432.55
Step by Step Solution
- Step 1: Write the proportion equation
908,768.70 : 1,363,153.05 = 731,621.70 : x - Step 2: Convert to fraction form
908,768.70/1,363,153.05 = 731,621.70/x - Step 3: Cross multiply
908,768.70x = 1,363,153.05 × 731,621.70 - Step 4: Simplify right side
908,768.70x = 997,312,351,801.19 - Step 5: Solve for x
x = 997,312,351,801.19/908,768.70 - Step 6: Final answer
x = 1,097,432.55
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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.