Finding the Fourth Proportional to 1,430,928.70, 1,974,250.74 and 857,759.74
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Solution
The fourth proportional to 1,430,928.70, 1,974,250.74 and 857,759.74 is: 1,183,450.16
Step by Step Solution
- Step 1: Write the proportion equation
1,430,928.70 : 1,974,250.74 = 857,759.74 : x - Step 2: Convert to fraction form
1,430,928.70/1,974,250.74 = 857,759.74/x - Step 3: Cross multiply
1,430,928.70x = 1,974,250.74 × 857,759.74 - Step 4: Simplify right side
1,430,928.70x = 1,693,432,801,437.21 - Step 5: Solve for x
x = 1,693,432,801,437.21/1,430,928.70 - Step 6: Final answer
x = 1,183,450.16
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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.