Finding the Fourth Proportional to 628,679.08, 943,019.40 and 155,357.20
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Solution
The fourth proportional to 628,679.08, 943,019.40 and 155,357.20 is: 233,035.99
Step by Step Solution
- Step 1: Write the proportion equation
628,679.08 : 943,019.40 = 155,357.20 : x - Step 2: Convert to fraction form
628,679.08/943,019.40 = 155,357.20/x - Step 3: Cross multiply
628,679.08x = 943,019.40 × 155,357.20 - Step 4: Simplify right side
628,679.08x = 146,504,853,529.68 - Step 5: Solve for x
x = 146,504,853,529.68/628,679.08 - Step 6: Final answer
x = 233,035.99
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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.