Finding the Fourth Proportional to 1,318,560.12, 1,819,648.80 and 745,686
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Solution
The fourth proportional to 1,318,560.12, 1,819,648.80 and 745,686 is: 1,029,066.95
Step by Step Solution
- Step 1: Write the proportion equation
1,318,560.12 : 1,819,648.80 = 745,686 : x - Step 2: Convert to fraction form
1,318,560.12/1,819,648.80 = 745,686/x - Step 3: Cross multiply
1,318,560.12x = 1,819,648.80 × 745,686 - Step 4: Simplify right side
1,318,560.12x = 1,356,886,635,076.80 - Step 5: Solve for x
x = 1,356,886,635,076.80/1,318,560.12 - Step 6: Final answer
x = 1,029,066.95
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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.