Finding the Fourth Proportional to 1,258,885.40, 1,888,515.72 and 449,206.70
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Solution
The fourth proportional to 1,258,885.40, 1,888,515.72 and 449,206.70 is: 673,876.99
Step by Step Solution
- Step 1: Write the proportion equation
1,258,885.40 : 1,888,515.72 = 449,206.70 : x - Step 2: Convert to fraction form
1,258,885.40/1,888,515.72 = 449,206.70/x - Step 3: Cross multiply
1,258,885.40x = 1,888,515.72 × 449,206.70 - Step 4: Simplify right side
1,258,885.40x = 848,333,905,036.75 - Step 5: Solve for x
x = 848,333,905,036.75/1,258,885.40 - Step 6: Final answer
x = 673,876.99
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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.