Finding the Fourth Proportional to 886,709.80, 1,330,259.10 and 437,645.80
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Solution
The fourth proportional to 886,709.80, 1,330,259.10 and 437,645.80 is: 656,564.65
Step by Step Solution
- Step 1: Write the proportion equation
886,709.80 : 1,330,259.10 = 437,645.80 : x - Step 2: Convert to fraction form
886,709.80/1,330,259.10 = 437,645.80/x - Step 3: Cross multiply
886,709.80x = 1,330,259.10 × 437,645.80 - Step 4: Simplify right side
886,709.80x = 582,182,308,026.78 - Step 5: Solve for x
x = 582,182,308,026.78/886,709.80 - Step 6: Final answer
x = 656,564.65
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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.