Finding the Fourth Proportional to 1,115,253.41, 1,539,020.66 and 631,806.12
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Solution
The fourth proportional to 1,115,253.41, 1,539,020.66 and 631,806.12 is: 871,875.99
Step by Step Solution
- Step 1: Write the proportion equation
1,115,253.41 : 1,539,020.66 = 631,806.12 : x - Step 2: Convert to fraction form
1,115,253.41/1,539,020.66 = 631,806.12/x - Step 3: Cross multiply
1,115,253.41x = 1,539,020.66 × 631,806.12 - Step 4: Simplify right side
1,115,253.41x = 972,362,668,635.41 - Step 5: Solve for x
x = 972,362,668,635.41/1,115,253.41 - Step 6: Final answer
x = 871,875.99
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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.