Finding the Fourth Proportional to 1,258,211.64, 1,736,351.84 and 685,251.36
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Solution
The fourth proportional to 1,258,211.64, 1,736,351.84 and 685,251.36 is: 945,657.65
Step by Step Solution
- Step 1: Write the proportion equation
1,258,211.64 : 1,736,351.84 = 685,251.36 : x - Step 2: Convert to fraction form
1,258,211.64/1,736,351.84 = 685,251.36/x - Step 3: Cross multiply
1,258,211.64x = 1,736,351.84 × 685,251.36 - Step 4: Simplify right side
1,258,211.64x = 1,189,837,461,511.63 - Step 5: Solve for x
x = 1,189,837,461,511.63/1,258,211.64 - Step 6: Final answer
x = 945,657.65
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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.