Finding the Fourth Proportional to 1,447,177.05, 2,171,077.43 and 487,728.81
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Solution
The fourth proportional to 1,447,177.05, 2,171,077.43 and 487,728.81 is: 731,698.31
Step by Step Solution
- Step 1: Write the proportion equation
1,447,177.05 : 2,171,077.43 = 487,728.81 : x - Step 2: Convert to fraction form
1,447,177.05/2,171,077.43 = 487,728.81/x - Step 3: Cross multiply
1,447,177.05x = 2,171,077.43 × 487,728.81 - Step 4: Simplify right side
1,447,177.05x = 1,058,897,008,913.11 - Step 5: Solve for x
x = 1,058,897,008,913.11/1,447,177.05 - Step 6: Final answer
x = 731,698.31
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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.