Finding the Fourth Proportional to 1,115,171.94, 1,539,013.50 and 631,741.08
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Solution
The fourth proportional to 1,115,171.94, 1,539,013.50 and 631,741.08 is: 871,845.87
Step by Step Solution
- Step 1: Write the proportion equation
1,115,171.94 : 1,539,013.50 = 631,741.08 : x - Step 2: Convert to fraction form
1,115,171.94/1,539,013.50 = 631,741.08/x - Step 3: Cross multiply
1,115,171.94x = 1,539,013.50 × 631,741.08 - Step 4: Simplify right side
1,115,171.94x = 972,258,050,624.58 - Step 5: Solve for x
x = 972,258,050,624.58/1,115,171.94 - Step 6: Final answer
x = 871,845.87
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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.