Finding the Fourth Proportional to 862,942.99, 1,190,902.08 and 480,972.55
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Solution
The fourth proportional to 862,942.99, 1,190,902.08 and 480,972.55 is: 663,764.83
Step by Step Solution
- Step 1: Write the proportion equation
862,942.99 : 1,190,902.08 = 480,972.55 : x - Step 2: Convert to fraction form
862,942.99/1,190,902.08 = 480,972.55/x - Step 3: Cross multiply
862,942.99x = 1,190,902.08 × 480,972.55 - Step 4: Simplify right side
862,942.99x = 572,791,210,217.90 - Step 5: Solve for x
x = 572,791,210,217.90/862,942.99 - Step 6: Final answer
x = 663,764.83
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1.5x scale
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.