Finding the Fourth Proportional to 1,648,144.99, 2,269,152.75 and 1,285,102.99
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Solution
The fourth proportional to 1,648,144.99, 2,269,152.75 and 1,285,102.99 is: 1,769,319.45
Step by Step Solution
- Step 1: Write the proportion equation
1,648,144.99 : 2,269,152.75 = 1,285,102.99 : x - Step 2: Convert to fraction form
1,648,144.99/2,269,152.75 = 1,285,102.99/x - Step 3: Cross multiply
1,648,144.99x = 2,269,152.75 × 1,285,102.99 - Step 4: Simplify right side
1,648,144.99x = 2,916,094,983,791.72 - Step 5: Solve for x
x = 2,916,094,983,791.72/1,648,144.99 - Step 6: Final answer
x = 1,769,319.45
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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.