Finding the Fourth Proportional to 1,259,898.70, 1,889,848.05 and 460,914.70
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Solution
The fourth proportional to 1,259,898.70, 1,889,848.05 and 460,914.70 is: 691,372.05
Step by Step Solution
- Step 1: Write the proportion equation
1,259,898.70 : 1,889,848.05 = 460,914.70 : x - Step 2: Convert to fraction form
1,259,898.70/1,889,848.05 = 460,914.70/x - Step 3: Cross multiply
1,259,898.70x = 1,889,848.05 × 460,914.70 - Step 4: Simplify right side
1,259,898.70x = 871,058,747,011.34 - Step 5: Solve for x
x = 871,058,747,011.34/1,259,898.70 - Step 6: Final answer
x = 691,372.05
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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.