Finding the Fourth Proportional to 1,115,251.91, 1,539,018.59 and 631,804.62
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Solution
The fourth proportional to 1,115,251.91, 1,539,018.59 and 631,804.62 is: 871,873.92
Step by Step Solution
- Step 1: Write the proportion equation
1,115,251.91 : 1,539,018.59 = 631,804.62 : x - Step 2: Convert to fraction form
1,115,251.91/1,539,018.59 = 631,804.62/x - Step 3: Cross multiply
1,115,251.91x = 1,539,018.59 × 631,804.62 - Step 4: Simplify right side
1,115,251.91x = 972,359,052,268.86 - Step 5: Solve for x
x = 972,359,052,268.86/1,115,251.91 - Step 6: Final answer
x = 871,873.92
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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.