Finding the Fourth Proportional to 752,899.21, 1,038,704.57 and 430,436.05
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Solution
The fourth proportional to 752,899.21, 1,038,704.57 and 430,436.05 is: 593,832.33
Step by Step Solution
- Step 1: Write the proportion equation
752,899.21 : 1,038,704.57 = 430,436.05 : x - Step 2: Convert to fraction form
752,899.21/1,038,704.57 = 430,436.05/x - Step 3: Cross multiply
752,899.21x = 1,038,704.57 × 430,436.05 - Step 4: Simplify right side
752,899.21x = 447,095,892,227.75 - Step 5: Solve for x
x = 447,095,892,227.75/752,899.21 - Step 6: Final answer
x = 593,832.33
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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.