Finding the Fourth Proportional to 1,318,323.62, 1,819,335.58 and 745,329.62
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Solution
The fourth proportional to 1,318,323.62, 1,819,335.58 and 745,329.62 is: 1,028,582.57
Step by Step Solution
- Step 1: Write the proportion equation
1,318,323.62 : 1,819,335.58 = 745,329.62 : x - Step 2: Convert to fraction form
1,318,323.62/1,819,335.58 = 745,329.62/x - Step 3: Cross multiply
1,318,323.62x = 1,819,335.58 × 745,329.62 - Step 4: Simplify right side
1,318,323.62x = 1,356,004,687,397.20 - Step 5: Solve for x
x = 1,356,004,687,397.20/1,318,323.62 - Step 6: Final answer
x = 1,028,582.57
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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.