Finding the Fourth Proportional to 1,115,087.19, 1,538,851.88 and 631,652.21
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Solution
The fourth proportional to 1,115,087.19, 1,538,851.88 and 631,652.21 is: 871,697.92
Step by Step Solution
- Step 1: Write the proportion equation
1,115,087.19 : 1,538,851.88 = 631,652.21 : x - Step 2: Convert to fraction form
1,115,087.19/1,538,851.88 = 631,652.21/x - Step 3: Cross multiply
1,115,087.19x = 1,538,851.88 × 631,652.21 - Step 4: Simplify right side
1,115,087.19x = 972,019,180,012.13 - Step 5: Solve for x
x = 972,019,180,012.13/1,115,087.19 - Step 6: Final answer
x = 871,697.92
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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.