Finding the Fourth Proportional to 885,801.20, 1,325,202.60 and 768,772.40
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Solution
The fourth proportional to 885,801.20, 1,325,202.60 and 768,772.40 is: 1,150,121.70
Step by Step Solution
- Step 1: Write the proportion equation
885,801.20 : 1,325,202.60 = 768,772.40 : x - Step 2: Convert to fraction form
885,801.20/1,325,202.60 = 768,772.40/x - Step 3: Cross multiply
885,801.20x = 1,325,202.60 × 768,772.40 - Step 4: Simplify right side
885,801.20x = 1,018,779,183,288.24 - Step 5: Solve for x
x = 1,018,779,183,288.24/885,801.20 - Step 6: Final answer
x = 1,150,121.70
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1.5x scale
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.