Finding the Fourth Proportional to 834,378.14, 1,151,430.72 and 452,396.72
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Solution
The fourth proportional to 834,378.14, 1,151,430.72 and 452,396.72 is: 624,301.45
Step by Step Solution
- Step 1: Write the proportion equation
834,378.14 : 1,151,430.72 = 452,396.72 : x - Step 2: Convert to fraction form
834,378.14/1,151,430.72 = 452,396.72/x - Step 3: Cross multiply
834,378.14x = 1,151,430.72 × 452,396.72 - Step 4: Simplify right side
834,378.14x = 520,903,481,035.24 - Step 5: Solve for x
x = 520,903,481,035.24/834,378.14 - Step 6: Final answer
x = 624,301.45
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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.