Finding the Fourth Proportional to 801,559.23, 1,106,140.46 and 438,982.99
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Solution
The fourth proportional to 801,559.23, 1,106,140.46 and 438,982.99 is: 605,790.35
Step by Step Solution
- Step 1: Write the proportion equation
801,559.23 : 1,106,140.46 = 438,982.99 : x - Step 2: Convert to fraction form
801,559.23/1,106,140.46 = 438,982.99/x - Step 3: Cross multiply
801,559.23x = 1,106,140.46 × 438,982.99 - Step 4: Simplify right side
801,559.23x = 485,576,847,752.55 - Step 5: Solve for x
x = 485,576,847,752.55/801,559.23 - Step 6: Final answer
x = 605,790.35
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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.