Finding the Fourth Proportional to 2,187,258.70, 3,280,888.05 and 857,562.70
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Solution
The fourth proportional to 2,187,258.70, 3,280,888.05 and 857,562.70 is: 1,286,344.05
Step by Step Solution
- Step 1: Write the proportion equation
2,187,258.70 : 3,280,888.05 = 857,562.70 : x - Step 2: Convert to fraction form
2,187,258.70/3,280,888.05 = 857,562.70/x - Step 3: Cross multiply
2,187,258.70x = 3,280,888.05 × 857,562.70 - Step 4: Simplify right side
2,187,258.70x = 2,813,567,214,555.74 - Step 5: Solve for x
x = 2,813,567,214,555.74/2,187,258.70 - Step 6: Final answer
x = 1,286,344.05
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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.