Finding the Fourth Proportional to 1,318,433.68, 1,819,428.51 and 745,494.22
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Solution
The fourth proportional to 1,318,433.68, 1,819,428.51 and 745,494.22 is: 1,028,776.39
Step by Step Solution
- Step 1: Write the proportion equation
1,318,433.68 : 1,819,428.51 = 745,494.22 : x - Step 2: Convert to fraction form
1,318,433.68/1,819,428.51 = 745,494.22/x - Step 3: Cross multiply
1,318,433.68x = 1,819,428.51 × 745,494.22 - Step 4: Simplify right side
1,318,433.68x = 1,356,373,437,908.21 - Step 5: Solve for x
x = 1,356,373,437,908.21/1,318,433.68 - Step 6: Final answer
x = 1,028,776.39
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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.