Finding the Fourth Proportional to 1,318,422.19, 1,819,461.01 and 745,450.06
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Solution
The fourth proportional to 1,318,422.19, 1,819,461.01 and 745,450.06 is: 1,028,742.79
Step by Step Solution
- Step 1: Write the proportion equation
1,318,422.19 : 1,819,461.01 = 745,450.06 : x - Step 2: Convert to fraction form
1,318,422.19/1,819,461.01 = 745,450.06/x - Step 3: Cross multiply
1,318,422.19x = 1,819,461.01 × 745,450.06 - Step 4: Simplify right side
1,318,422.19x = 1,356,317,319,072.16 - Step 5: Solve for x
x = 1,356,317,319,072.16/1,318,422.19 - Step 6: Final answer
x = 1,028,742.79
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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.