Finding the Fourth Proportional to 939,485.80, 1,409,228.70 and 603,562.60
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Solution
The fourth proportional to 939,485.80, 1,409,228.70 and 603,562.60 is: 905,343.90
Step by Step Solution
- Step 1: Write the proportion equation
939,485.80 : 1,409,228.70 = 603,562.60 : x - Step 2: Convert to fraction form
939,485.80/1,409,228.70 = 603,562.60/x - Step 3: Cross multiply
939,485.80x = 1,409,228.70 × 603,562.60 - Step 4: Simplify right side
939,485.80x = 850,557,738,166.62 - Step 5: Solve for x
x = 850,557,738,166.62/939,485.80 - Step 6: Final answer
x = 905,343.90
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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.