Finding the Fourth Proportional to 902,919.99, 1,245,996.50 and 495,012.90
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Solution
The fourth proportional to 902,919.99, 1,245,996.50 and 495,012.90 is: 683,099.66
Step by Step Solution
- Step 1: Write the proportion equation
902,919.99 : 1,245,996.50 = 495,012.90 : x - Step 2: Convert to fraction form
902,919.99/1,245,996.50 = 495,012.90/x - Step 3: Cross multiply
902,919.99x = 1,245,996.50 × 495,012.90 - Step 4: Simplify right side
902,919.99x = 616,784,332,149.80 - Step 5: Solve for x
x = 616,784,332,149.80/902,919.99 - Step 6: Final answer
x = 683,099.66
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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.